Home / 747,805.66-1,031,966.48-408,273.90

Finding the Fourth Proportional to 747,805.66, 1,031,966.48 and 408,273.90

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Solution

The fourth proportional to 747,805.66, 1,031,966.48 and 408,273.90 is: 563,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,805.66 : 1,031,966.48 = 408,273.90 : x
  2. Step 2: Convert to fraction form
    747,805.66/1,031,966.48 = 408,273.90/x
  3. Step 3: Cross multiply
    747,805.66x = 1,031,966.48 × 408,273.90
  4. Step 4: Simplify right side
    747,805.66x = 421,324,979,458.87
  5. Step 5: Solve for x
    x = 421,324,979,458.87/747,805.66
  6. Step 6: Final answer
    x = 563,415.07

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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.