Home / 670,734.40-1,006,150.20-403,920.40

Finding the Fourth Proportional to 670,734.40, 1,006,150.20 and 403,920.40

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Solution

The fourth proportional to 670,734.40, 1,006,150.20 and 403,920.40 is: 605,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,734.40 : 1,006,150.20 = 403,920.40 : x
  2. Step 2: Convert to fraction form
    670,734.40/1,006,150.20 = 403,920.40/x
  3. Step 3: Cross multiply
    670,734.40x = 1,006,150.20 × 403,920.40
  4. Step 4: Simplify right side
    670,734.40x = 406,404,591,244.08
  5. Step 5: Solve for x
    x = 406,404,591,244.08/670,734.40
  6. Step 6: Final answer
    x = 605,909.87

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1.5x scale

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.