Home / 960,904.10-1,440,146.55-487,720.10

Finding the Fourth Proportional to 960,904.10, 1,440,146.55 and 487,720.10

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Solution

The fourth proportional to 960,904.10, 1,440,146.55 and 487,720.10 is: 730,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,904.10 : 1,440,146.55 = 487,720.10 : x
  2. Step 2: Convert to fraction form
    960,904.10/1,440,146.55 = 487,720.10/x
  3. Step 3: Cross multiply
    960,904.10x = 1,440,146.55 × 487,720.10
  4. Step 4: Simplify right side
    960,904.10x = 702,388,419,380.66
  5. Step 5: Solve for x
    x = 702,388,419,380.66/960,904.10
  6. Step 6: Final answer
    x = 730,966.20

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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.