Home / 747,476.17-1,031,158.43-489,239.46

Finding the Fourth Proportional to 747,476.17, 1,031,158.43 and 489,239.46

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Solution

The fourth proportional to 747,476.17, 1,031,158.43 and 489,239.46 is: 674,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,476.17 : 1,031,158.43 = 489,239.46 : x
  2. Step 2: Convert to fraction form
    747,476.17/1,031,158.43 = 489,239.46/x
  3. Step 3: Cross multiply
    747,476.17x = 1,031,158.43 × 489,239.46
  4. Step 4: Simplify right side
    747,476.17x = 504,483,388,311.86
  5. Step 5: Solve for x
    x = 504,483,388,311.86/747,476.17
  6. Step 6: Final answer
    x = 674,915.69

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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.