Home / 747,299.72-1,031,265.06-407,773.64

Finding the Fourth Proportional to 747,299.72, 1,031,265.06 and 407,773.64

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Solution

The fourth proportional to 747,299.72, 1,031,265.06 and 407,773.64 is: 562,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,299.72 : 1,031,265.06 = 407,773.64 : x
  2. Step 2: Convert to fraction form
    747,299.72/1,031,265.06 = 407,773.64/x
  3. Step 3: Cross multiply
    747,299.72x = 1,031,265.06 × 407,773.64
  4. Step 4: Simplify right side
    747,299.72x = 420,522,707,321.02
  5. Step 5: Solve for x
    x = 420,522,707,321.02/747,299.72
  6. Step 6: Final answer
    x = 562,722.96

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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.