Home / 698,452.20-1,047,678.30-657,117.90

Finding the Fourth Proportional to 698,452.20, 1,047,678.30 and 657,117.90

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Solution

The fourth proportional to 698,452.20, 1,047,678.30 and 657,117.90 is: 985,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,452.20 : 1,047,678.30 = 657,117.90 : x
  2. Step 2: Convert to fraction form
    698,452.20/1,047,678.30 = 657,117.90/x
  3. Step 3: Cross multiply
    698,452.20x = 1,047,678.30 × 657,117.90
  4. Step 4: Simplify right side
    698,452.20x = 688,448,164,371.57
  5. Step 5: Solve for x
    x = 688,448,164,371.57/698,452.20
  6. Step 6: Final answer
    x = 985,676.85

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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.