Home / 457,886.86-631,916.25-253,957.21

Finding the Fourth Proportional to 457,886.86, 631,916.25 and 253,957.21

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Solution

The fourth proportional to 457,886.86, 631,916.25 and 253,957.21 is: 350,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,886.86 : 631,916.25 = 253,957.21 : x
  2. Step 2: Convert to fraction form
    457,886.86/631,916.25 = 253,957.21/x
  3. Step 3: Cross multiply
    457,886.86x = 631,916.25 × 253,957.21
  4. Step 4: Simplify right side
    457,886.86x = 160,479,687,803.66
  5. Step 5: Solve for x
    x = 160,479,687,803.66/457,886.86
  6. Step 6: Final answer
    x = 350,478.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.