Home / 658,128.22-908,060.73-400,000.66

Finding the Fourth Proportional to 658,128.22, 908,060.73 and 400,000.66

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Solution

The fourth proportional to 658,128.22, 908,060.73 and 400,000.66 is: 551,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,128.22 : 908,060.73 = 400,000.66 : x
  2. Step 2: Convert to fraction form
    658,128.22/908,060.73 = 400,000.66/x
  3. Step 3: Cross multiply
    658,128.22x = 908,060.73 × 400,000.66
  4. Step 4: Simplify right side
    658,128.22x = 363,224,891,320.08
  5. Step 5: Solve for x
    x = 363,224,891,320.08/658,128.22
  6. Step 6: Final answer
    x = 551,905.97

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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.