Home / 747,664.74-1,031,776.92-408,132.90

Finding the Fourth Proportional to 747,664.74, 1,031,776.92 and 408,132.90

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Solution

The fourth proportional to 747,664.74, 1,031,776.92 and 408,132.90 is: 563,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,664.74 : 1,031,776.92 = 408,132.90 : x
  2. Step 2: Convert to fraction form
    747,664.74/1,031,776.92 = 408,132.90/x
  3. Step 3: Cross multiply
    747,664.74x = 1,031,776.92 × 408,132.90
  4. Step 4: Simplify right side
    747,664.74x = 421,102,106,512.67
  5. Step 5: Solve for x
    x = 421,102,106,512.67/747,664.74
  6. Step 6: Final answer
    x = 563,223.17

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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.