Home / 676,871.40-1,015,307.10-672,205.80

Finding the Fourth Proportional to 676,871.40, 1,015,307.10 and 672,205.80

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Solution

The fourth proportional to 676,871.40, 1,015,307.10 and 672,205.80 is: 1,008,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,871.40 : 1,015,307.10 = 672,205.80 : x
  2. Step 2: Convert to fraction form
    676,871.40/1,015,307.10 = 672,205.80/x
  3. Step 3: Cross multiply
    676,871.40x = 1,015,307.10 × 672,205.80
  4. Step 4: Simplify right side
    676,871.40x = 682,495,321,401.18
  5. Step 5: Solve for x
    x = 682,495,321,401.18/676,871.40
  6. Step 6: Final answer
    x = 1,008,308.70

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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.