Home / 747,117.92-1,031,002.32-407,586.08

Finding the Fourth Proportional to 747,117.92, 1,031,002.32 and 407,586.08

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Solution

The fourth proportional to 747,117.92, 1,031,002.32 and 407,586.08 is: 562,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,117.92 : 1,031,002.32 = 407,586.08 : x
  2. Step 2: Convert to fraction form
    747,117.92/1,031,002.32 = 407,586.08/x
  3. Step 3: Cross multiply
    747,117.92x = 1,031,002.32 × 407,586.08
  4. Step 4: Simplify right side
    747,117.92x = 420,222,194,079.71
  5. Step 5: Solve for x
    x = 420,222,194,079.71/747,117.92
  6. Step 6: Final answer
    x = 562,457.66

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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.