Home / 477,977.12-716,718.62-140,974.78

Finding the Fourth Proportional to 477,977.12, 716,718.62 and 140,974.78

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Solution

The fourth proportional to 477,977.12, 716,718.62 and 140,974.78 is: 211,389.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,977.12 : 716,718.62 = 140,974.78 : x
  2. Step 2: Convert to fraction form
    477,977.12/716,718.62 = 140,974.78/x
  3. Step 3: Cross multiply
    477,977.12x = 716,718.62 × 140,974.78
  4. Step 4: Simplify right side
    477,977.12x = 101,039,246,192.81
  5. Step 5: Solve for x
    x = 101,039,246,192.81/477,977.12
  6. Step 6: Final answer
    x = 211,389.29

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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.