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Finding the Fourth Proportional to 658,512.08, 908,792.16 and 400,489.82

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Solution

The fourth proportional to 658,512.08, 908,792.16 and 400,489.82 is: 552,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,512.08 : 908,792.16 = 400,489.82 : x
  2. Step 2: Convert to fraction form
    658,512.08/908,792.16 = 400,489.82/x
  3. Step 3: Cross multiply
    658,512.08x = 908,792.16 × 400,489.82
  4. Step 4: Simplify right side
    658,512.08x = 363,962,008,575.81
  5. Step 5: Solve for x
    x = 363,962,008,575.81/658,512.08
  6. Step 6: Final answer
    x = 552,703.62

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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.