Home / 670,730.40-1,006,144.20-403,916.40

Finding the Fourth Proportional to 670,730.40, 1,006,144.20 and 403,916.40

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Solution

The fourth proportional to 670,730.40, 1,006,144.20 and 403,916.40 is: 605,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,730.40 : 1,006,144.20 = 403,916.40 : x
  2. Step 2: Convert to fraction form
    670,730.40/1,006,144.20 = 403,916.40/x
  3. Step 3: Cross multiply
    670,730.40x = 1,006,144.20 × 403,916.40
  4. Step 4: Simplify right side
    670,730.40x = 406,398,143,144.88
  5. Step 5: Solve for x
    x = 406,398,143,144.88/670,730.40
  6. Step 6: Final answer
    x = 605,903.87

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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.