Home / 457,095.60-686,032.20-204,764.40

Finding the Fourth Proportional to 457,095.60, 686,032.20 and 204,764.40

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Solution

The fourth proportional to 457,095.60, 686,032.20 and 204,764.40 is: 307,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,095.60 : 686,032.20 = 204,764.40 : x
  2. Step 2: Convert to fraction form
    457,095.60/686,032.20 = 204,764.40/x
  3. Step 3: Cross multiply
    457,095.60x = 686,032.20 × 204,764.40
  4. Step 4: Simplify right side
    457,095.60x = 140,474,971,813.68
  5. Step 5: Solve for x
    x = 140,474,971,813.68/457,095.60
  6. Step 6: Final answer
    x = 307,320.77

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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.