Home / 842,117.88-1,162,121.76-454,933.20

Finding the Fourth Proportional to 842,117.88, 1,162,121.76 and 454,933.20

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Solution

The fourth proportional to 842,117.88, 1,162,121.76 and 454,933.20 is: 627,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,117.88 : 1,162,121.76 = 454,933.20 : x
  2. Step 2: Convert to fraction form
    842,117.88/1,162,121.76 = 454,933.20/x
  3. Step 3: Cross multiply
    842,117.88x = 1,162,121.76 × 454,933.20
  4. Step 4: Simplify right side
    842,117.88x = 528,687,771,066.43
  5. Step 5: Solve for x
    x = 528,687,771,066.43/842,117.88
  6. Step 6: Final answer
    x = 627,807.32

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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.