Home / 877,560.30-1,316,340.45-344,904.30

Finding the Fourth Proportional to 877,560.30, 1,316,340.45 and 344,904.30

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Solution

The fourth proportional to 877,560.30, 1,316,340.45 and 344,904.30 is: 517,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,560.30 : 1,316,340.45 = 344,904.30 : x
  2. Step 2: Convert to fraction form
    877,560.30/1,316,340.45 = 344,904.30/x
  3. Step 3: Cross multiply
    877,560.30x = 1,316,340.45 × 344,904.30
  4. Step 4: Simplify right side
    877,560.30x = 454,011,481,468.94
  5. Step 5: Solve for x
    x = 454,011,481,468.94/877,560.30
  6. Step 6: Final answer
    x = 517,356.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.