Home / 747,807.52-1,031,998.80-408,301.60

Finding the Fourth Proportional to 747,807.52, 1,031,998.80 and 408,301.60

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Solution

The fourth proportional to 747,807.52, 1,031,998.80 and 408,301.60 is: 563,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,807.52 : 1,031,998.80 = 408,301.60 : x
  2. Step 2: Convert to fraction form
    747,807.52/1,031,998.80 = 408,301.60/x
  3. Step 3: Cross multiply
    747,807.52x = 1,031,998.80 × 408,301.60
  4. Step 4: Simplify right side
    747,807.52x = 421,366,761,238.08
  5. Step 5: Solve for x
    x = 421,366,761,238.08/747,807.52
  6. Step 6: Final answer
    x = 563,469.54

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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.