Home / 457,410.90-686,051.55-141,899.70

Finding the Fourth Proportional to 457,410.90, 686,051.55 and 141,899.70

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Solution

The fourth proportional to 457,410.90, 686,051.55 and 141,899.70 is: 212,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,410.90 : 686,051.55 = 141,899.70 : x
  2. Step 2: Convert to fraction form
    457,410.90/686,051.55 = 141,899.70/x
  3. Step 3: Cross multiply
    457,410.90x = 686,051.55 × 141,899.70
  4. Step 4: Simplify right side
    457,410.90x = 97,350,509,129.54
  5. Step 5: Solve for x
    x = 97,350,509,129.54/457,410.90
  6. Step 6: Final answer
    x = 212,829.45

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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.