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Finding the Fourth Proportional to 428,999.96, 592,072.47 and 247,711.43

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Solution

The fourth proportional to 428,999.96, 592,072.47 and 247,711.43 is: 341,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,999.96 : 592,072.47 = 247,711.43 : x
  2. Step 2: Convert to fraction form
    428,999.96/592,072.47 = 247,711.43/x
  3. Step 3: Cross multiply
    428,999.96x = 592,072.47 × 247,711.43
  4. Step 4: Simplify right side
    428,999.96x = 146,663,119,687.51
  5. Step 5: Solve for x
    x = 146,663,119,687.51/428,999.96
  6. Step 6: Final answer
    x = 341,872.10

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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.