Home / 714,872.12-985,976.88-485,606.18

Finding the Fourth Proportional to 714,872.12, 985,976.88 and 485,606.18

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Solution

The fourth proportional to 714,872.12, 985,976.88 and 485,606.18 is: 669,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,872.12 : 985,976.88 = 485,606.18 : x
  2. Step 2: Convert to fraction form
    714,872.12/985,976.88 = 485,606.18/x
  3. Step 3: Cross multiply
    714,872.12x = 985,976.88 × 485,606.18
  4. Step 4: Simplify right side
    714,872.12x = 478,796,466,265.12
  5. Step 5: Solve for x
    x = 478,796,466,265.12/714,872.12
  6. Step 6: Final answer
    x = 669,765.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.