Home / 457,535.75-686,145.65-187,587.29

Finding the Fourth Proportional to 457,535.75, 686,145.65 and 187,587.29

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Solution

The fourth proportional to 457,535.75, 686,145.65 and 187,587.29 is: 281,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,535.75 : 686,145.65 = 187,587.29 : x
  2. Step 2: Convert to fraction form
    457,535.75/686,145.65 = 187,587.29/x
  3. Step 3: Cross multiply
    457,535.75x = 686,145.65 × 187,587.29
  4. Step 4: Simplify right side
    457,535.75x = 128,712,203,806.22
  5. Step 5: Solve for x
    x = 128,712,203,806.22/457,535.75
  6. Step 6: Final answer
    x = 281,316.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.