Home / 676,281.40-1,013,689.86-439,793.80

Finding the Fourth Proportional to 676,281.40, 1,013,689.86 and 439,793.80

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Solution

The fourth proportional to 676,281.40, 1,013,689.86 and 439,793.80 is: 659,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,281.40 : 1,013,689.86 = 439,793.80 : x
  2. Step 2: Convert to fraction form
    676,281.40/1,013,689.86 = 439,793.80/x
  3. Step 3: Cross multiply
    676,281.40x = 1,013,689.86 × 439,793.80
  4. Step 4: Simplify right side
    676,281.40x = 445,814,515,550.87
  5. Step 5: Solve for x
    x = 445,814,515,550.87/676,281.40
  6. Step 6: Final answer
    x = 659,214.52

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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.