Home / 747,580.90-1,031,661.61-408,049.15

Finding the Fourth Proportional to 747,580.90, 1,031,661.61 and 408,049.15

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Solution

The fourth proportional to 747,580.90, 1,031,661.61 and 408,049.15 is: 563,107.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,580.90 : 1,031,661.61 = 408,049.15 : x
  2. Step 2: Convert to fraction form
    747,580.90/1,031,661.61 = 408,049.15/x
  3. Step 3: Cross multiply
    747,580.90x = 1,031,661.61 × 408,049.15
  4. Step 4: Simplify right side
    747,580.90x = 420,968,643,048.13
  5. Step 5: Solve for x
    x = 420,968,643,048.13/747,580.90
  6. Step 6: Final answer
    x = 563,107.81

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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.