Home / 457,931.84-687,095.52-247,717.76

Finding the Fourth Proportional to 457,931.84, 687,095.52 and 247,717.76

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Solution

The fourth proportional to 457,931.84, 687,095.52 and 247,717.76 is: 371,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,931.84 : 687,095.52 = 247,717.76 : x
  2. Step 2: Convert to fraction form
    457,931.84/687,095.52 = 247,717.76/x
  3. Step 3: Cross multiply
    457,931.84x = 687,095.52 × 247,717.76
  4. Step 4: Simplify right side
    457,931.84x = 170,205,763,120.44
  5. Step 5: Solve for x
    x = 170,205,763,120.44/457,931.84
  6. Step 6: Final answer
    x = 371,683.62

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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.