Home / 667,669.68-921,029.40-506,258.15

Finding the Fourth Proportional to 667,669.68, 921,029.40 and 506,258.15

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Solution

The fourth proportional to 667,669.68, 921,029.40 and 506,258.15 is: 698,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,669.68 : 921,029.40 = 506,258.15 : x
  2. Step 2: Convert to fraction form
    667,669.68/921,029.40 = 506,258.15/x
  3. Step 3: Cross multiply
    667,669.68x = 921,029.40 × 506,258.15
  4. Step 4: Simplify right side
    667,669.68x = 466,278,635,534.46
  5. Step 5: Solve for x
    x = 466,278,635,534.46/667,669.68
  6. Step 6: Final answer
    x = 698,367.25

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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.