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Finding the Fourth Proportional to 440,057.93, 607,084.57 and 287,060.88

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Solution

The fourth proportional to 440,057.93, 607,084.57 and 287,060.88 is: 396,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,057.93 : 607,084.57 = 287,060.88 : x
  2. Step 2: Convert to fraction form
    440,057.93/607,084.57 = 287,060.88/x
  3. Step 3: Cross multiply
    440,057.93x = 607,084.57 × 287,060.88
  4. Step 4: Simplify right side
    440,057.93x = 174,270,230,898.62
  5. Step 5: Solve for x
    x = 174,270,230,898.62/440,057.93
  6. Step 6: Final answer
    x = 396,016.57

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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.