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Finding the Fourth Proportional to 658,615.46, 908,890.24 and 356,809.46

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Solution

The fourth proportional to 658,615.46, 908,890.24 and 356,809.46 is: 492,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,615.46 : 908,890.24 = 356,809.46 : x
  2. Step 2: Convert to fraction form
    658,615.46/908,890.24 = 356,809.46/x
  3. Step 3: Cross multiply
    658,615.46x = 908,890.24 × 356,809.46
  4. Step 4: Simplify right side
    658,615.46x = 324,300,635,733.67
  5. Step 5: Solve for x
    x = 324,300,635,733.67/658,615.46
  6. Step 6: Final answer
    x = 492,397.55

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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.