Home / 1,005,639.50-1,508,505.71-331,779.70

Finding the Fourth Proportional to 1,005,639.50, 1,508,505.71 and 331,779.70

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Solution

The fourth proportional to 1,005,639.50, 1,508,505.71 and 331,779.70 is: 497,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,639.50 : 1,508,505.71 = 331,779.70 : x
  2. Step 2: Convert to fraction form
    1,005,639.50/1,508,505.71 = 331,779.70/x
  3. Step 3: Cross multiply
    1,005,639.50x = 1,508,505.71 × 331,779.70
  4. Step 4: Simplify right side
    1,005,639.50x = 500,491,565,519.74
  5. Step 5: Solve for x
    x = 500,491,565,519.74/1,005,639.50
  6. Step 6: Final answer
    x = 497,684.87

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1.5x scale

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.