Home / 747,600.64-1,031,699.64-408,061.60

Finding the Fourth Proportional to 747,600.64, 1,031,699.64 and 408,061.60

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Solution

The fourth proportional to 747,600.64, 1,031,699.64 and 408,061.60 is: 563,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,600.64 : 1,031,699.64 = 408,061.60 : x
  2. Step 2: Convert to fraction form
    747,600.64/1,031,699.64 = 408,061.60/x
  3. Step 3: Cross multiply
    747,600.64x = 1,031,699.64 × 408,061.60
  4. Step 4: Simplify right side
    747,600.64x = 420,997,005,817.82
  5. Step 5: Solve for x
    x = 420,997,005,817.82/747,600.64
  6. Step 6: Final answer
    x = 563,130.88

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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.