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Finding the Fourth Proportional to 670,049.30, 924,883.53 and 428,981.15

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Solution

The fourth proportional to 670,049.30, 924,883.53 and 428,981.15 is: 592,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,049.30 : 924,883.53 = 428,981.15 : x
  2. Step 2: Convert to fraction form
    670,049.30/924,883.53 = 428,981.15/x
  3. Step 3: Cross multiply
    670,049.30x = 924,883.53 × 428,981.15
  4. Step 4: Simplify right side
    670,049.30x = 396,757,600,315.46
  5. Step 5: Solve for x
    x = 396,757,600,315.46/670,049.30
  6. Step 6: Final answer
    x = 592,131.95

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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.