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Finding the Fourth Proportional to 425,531.07, 587,473.16 and 282,486.69

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Solution

The fourth proportional to 425,531.07, 587,473.16 and 282,486.69 is: 389,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,531.07 : 587,473.16 = 282,486.69 : x
  2. Step 2: Convert to fraction form
    425,531.07/587,473.16 = 282,486.69/x
  3. Step 3: Cross multiply
    425,531.07x = 587,473.16 × 282,486.69
  4. Step 4: Simplify right side
    425,531.07x = 165,953,347,019.81
  5. Step 5: Solve for x
    x = 165,953,347,019.81/425,531.07
  6. Step 6: Final answer
    x = 389,991.14

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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.