Home / 457,259.10-686,277.45-204,927.90

Finding the Fourth Proportional to 457,259.10, 686,277.45 and 204,927.90

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Solution

The fourth proportional to 457,259.10, 686,277.45 and 204,927.90 is: 307,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,259.10 : 686,277.45 = 204,927.90 : x
  2. Step 2: Convert to fraction form
    457,259.10/686,277.45 = 204,927.90/x
  3. Step 3: Cross multiply
    457,259.10x = 686,277.45 × 204,927.90
  4. Step 4: Simplify right side
    457,259.10x = 140,637,396,645.86
  5. Step 5: Solve for x
    x = 140,637,396,645.86/457,259.10
  6. Step 6: Final answer
    x = 307,566.10

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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.