Home / 670,301.40-1,005,452.10-665,635.80

Finding the Fourth Proportional to 670,301.40, 1,005,452.10 and 665,635.80

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Solution

The fourth proportional to 670,301.40, 1,005,452.10 and 665,635.80 is: 998,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,301.40 : 1,005,452.10 = 665,635.80 : x
  2. Step 2: Convert to fraction form
    670,301.40/1,005,452.10 = 665,635.80/x
  3. Step 3: Cross multiply
    670,301.40x = 1,005,452.10 × 665,635.80
  4. Step 4: Simplify right side
    670,301.40x = 669,264,912,945.18
  5. Step 5: Solve for x
    x = 669,264,912,945.18/670,301.40
  6. Step 6: Final answer
    x = 998,453.70

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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.