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Finding the Fourth Proportional to 457,842.05, 631,854.36 and 253,912.46

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Solution

The fourth proportional to 457,842.05, 631,854.36 and 253,912.46 is: 350,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,842.05 : 631,854.36 = 253,912.46 : x
  2. Step 2: Convert to fraction form
    457,842.05/631,854.36 = 253,912.46/x
  3. Step 3: Cross multiply
    457,842.05x = 631,854.36 × 253,912.46
  4. Step 4: Simplify right side
    457,842.05x = 160,435,696,488.96
  5. Step 5: Solve for x
    x = 160,435,696,488.96/457,842.05
  6. Step 6: Final answer
    x = 350,417.13

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1.5x scale

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.