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Finding the Fourth Proportional to 477,087.71, 658,476.74 and 283,458.15

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Solution

The fourth proportional to 477,087.71, 658,476.74 and 283,458.15 is: 391,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,087.71 : 658,476.74 = 283,458.15 : x
  2. Step 2: Convert to fraction form
    477,087.71/658,476.74 = 283,458.15/x
  3. Step 3: Cross multiply
    477,087.71x = 658,476.74 × 283,458.15
  4. Step 4: Simplify right side
    477,087.71x = 186,650,599,247.08
  5. Step 5: Solve for x
    x = 186,650,599,247.08/477,087.71
  6. Step 6: Final answer
    x = 391,229.11

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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.