Home / 667,149.85-1,000,478.71-288,088.08

Finding the Fourth Proportional to 667,149.85, 1,000,478.71 and 288,088.08

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Solution

The fourth proportional to 667,149.85, 1,000,478.71 and 288,088.08 is: 432,025.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,149.85 : 1,000,478.71 = 288,088.08 : x
  2. Step 2: Convert to fraction form
    667,149.85/1,000,478.71 = 288,088.08/x
  3. Step 3: Cross multiply
    667,149.85x = 1,000,478.71 × 288,088.08
  4. Step 4: Simplify right side
    667,149.85x = 288,225,990,644.78
  5. Step 5: Solve for x
    x = 288,225,990,644.78/667,149.85
  6. Step 6: Final answer
    x = 432,025.86

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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.