Home / 653,990.24-979,565.52-316,322.72

Finding the Fourth Proportional to 653,990.24, 979,565.52 and 316,322.72

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Solution

The fourth proportional to 653,990.24, 979,565.52 and 316,322.72 is: 473,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,990.24 : 979,565.52 = 316,322.72 : x
  2. Step 2: Convert to fraction form
    653,990.24/979,565.52 = 316,322.72/x
  3. Step 3: Cross multiply
    653,990.24x = 979,565.52 × 316,322.72
  4. Step 4: Simplify right side
    653,990.24x = 309,858,829,704.61
  5. Step 5: Solve for x
    x = 309,858,829,704.61/653,990.24
  6. Step 6: Final answer
    x = 473,797.33

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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.