Home / 738,078.30-1,107,117.45-559,619.10

Finding the Fourth Proportional to 738,078.30, 1,107,117.45 and 559,619.10

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Solution

The fourth proportional to 738,078.30, 1,107,117.45 and 559,619.10 is: 839,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,078.30 : 1,107,117.45 = 559,619.10 : x
  2. Step 2: Convert to fraction form
    738,078.30/1,107,117.45 = 559,619.10/x
  3. Step 3: Cross multiply
    738,078.30x = 1,107,117.45 × 559,619.10
  4. Step 4: Simplify right side
    738,078.30x = 619,564,070,963.30
  5. Step 5: Solve for x
    x = 619,564,070,963.30/738,078.30
  6. Step 6: Final answer
    x = 839,428.65

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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.