Home / 675,431.40-1,013,147.10-670,765.80

Finding the Fourth Proportional to 675,431.40, 1,013,147.10 and 670,765.80

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Solution

The fourth proportional to 675,431.40, 1,013,147.10 and 670,765.80 is: 1,006,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,431.40 : 1,013,147.10 = 670,765.80 : x
  2. Step 2: Convert to fraction form
    675,431.40/1,013,147.10 = 670,765.80/x
  3. Step 3: Cross multiply
    675,431.40x = 1,013,147.10 × 670,765.80
  4. Step 4: Simplify right side
    675,431.40x = 679,584,425,049.18
  5. Step 5: Solve for x
    x = 679,584,425,049.18/675,431.40
  6. Step 6: Final answer
    x = 1,006,148.70

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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.