Home / 670,744.40-1,006,165.20-403,930.40

Finding the Fourth Proportional to 670,744.40, 1,006,165.20 and 403,930.40

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Solution

The fourth proportional to 670,744.40, 1,006,165.20 and 403,930.40 is: 605,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,744.40 : 1,006,165.20 = 403,930.40 : x
  2. Step 2: Convert to fraction form
    670,744.40/1,006,165.20 = 403,930.40/x
  3. Step 3: Cross multiply
    670,744.40x = 1,006,165.20 × 403,930.40
  4. Step 4: Simplify right side
    670,744.40x = 406,420,711,702.08
  5. Step 5: Solve for x
    x = 406,420,711,702.08/670,744.40
  6. Step 6: Final answer
    x = 605,924.87

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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.