Home / 960,015.70-1,440,023.55-642,754.90

Finding the Fourth Proportional to 960,015.70, 1,440,023.55 and 642,754.90

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Solution

The fourth proportional to 960,015.70, 1,440,023.55 and 642,754.90 is: 964,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,015.70 : 1,440,023.55 = 642,754.90 : x
  2. Step 2: Convert to fraction form
    960,015.70/1,440,023.55 = 642,754.90/x
  3. Step 3: Cross multiply
    960,015.70x = 1,440,023.55 × 642,754.90
  4. Step 4: Simplify right side
    960,015.70x = 925,582,192,877.90
  5. Step 5: Solve for x
    x = 925,582,192,877.90/960,015.70
  6. Step 6: Final answer
    x = 964,132.35

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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.