Home / 730,424.75-1,007,991.21-408,148.43

Finding the Fourth Proportional to 730,424.75, 1,007,991.21 and 408,148.43

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Solution

The fourth proportional to 730,424.75, 1,007,991.21 and 408,148.43 is: 563,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,424.75 : 1,007,991.21 = 408,148.43 : x
  2. Step 2: Convert to fraction form
    730,424.75/1,007,991.21 = 408,148.43/x
  3. Step 3: Cross multiply
    730,424.75x = 1,007,991.21 × 408,148.43
  4. Step 4: Simplify right side
    730,424.75x = 411,410,029,815.30
  5. Step 5: Solve for x
    x = 411,410,029,815.30/730,424.75
  6. Step 6: Final answer
    x = 563,247.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.