Home / 693,470.40-1,040,205.60-641,630.40

Finding the Fourth Proportional to 693,470.40, 1,040,205.60 and 641,630.40

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Solution

The fourth proportional to 693,470.40, 1,040,205.60 and 641,630.40 is: 962,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,470.40 : 1,040,205.60 = 641,630.40 : x
  2. Step 2: Convert to fraction form
    693,470.40/1,040,205.60 = 641,630.40/x
  3. Step 3: Cross multiply
    693,470.40x = 1,040,205.60 × 641,630.40
  4. Step 4: Simplify right side
    693,470.40x = 667,427,535,210.24
  5. Step 5: Solve for x
    x = 667,427,535,210.24/693,470.40
  6. Step 6: Final answer
    x = 962,445.60

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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.