Home / 763,079.24-1,053,062.58-418,947.20

Finding the Fourth Proportional to 763,079.24, 1,053,062.58 and 418,947.20

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Solution

The fourth proportional to 763,079.24, 1,053,062.58 and 418,947.20 is: 578,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,079.24 : 1,053,062.58 = 418,947.20 : x
  2. Step 2: Convert to fraction form
    763,079.24/1,053,062.58 = 418,947.20/x
  3. Step 3: Cross multiply
    763,079.24x = 1,053,062.58 × 418,947.20
  4. Step 4: Simplify right side
    763,079.24x = 441,177,614,050.46
  5. Step 5: Solve for x
    x = 441,177,614,050.46/763,079.24
  6. Step 6: Final answer
    x = 578,154.40

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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.