Home / 1,419,744.20-2,128,565.90-670,915.40

Finding the Fourth Proportional to 1,419,744.20, 2,128,565.90 and 670,915.40

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Solution

The fourth proportional to 1,419,744.20, 2,128,565.90 and 670,915.40 is: 1,005,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,744.20 : 2,128,565.90 = 670,915.40 : x
  2. Step 2: Convert to fraction form
    1,419,744.20/2,128,565.90 = 670,915.40/x
  3. Step 3: Cross multiply
    1,419,744.20x = 2,128,565.90 × 670,915.40
  4. Step 4: Simplify right side
    1,419,744.20x = 1,428,087,642,224.86
  5. Step 5: Solve for x
    x = 1,428,087,642,224.86/1,419,744.20
  6. Step 6: Final answer
    x = 1,005,876.72

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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.