Home / 818,057.30-1,129,473.24-512,256.38

Finding the Fourth Proportional to 818,057.30, 1,129,473.24 and 512,256.38

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Solution

The fourth proportional to 818,057.30, 1,129,473.24 and 512,256.38 is: 707,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,057.30 : 1,129,473.24 = 512,256.38 : x
  2. Step 2: Convert to fraction form
    818,057.30/1,129,473.24 = 512,256.38/x
  3. Step 3: Cross multiply
    818,057.30x = 1,129,473.24 × 512,256.38
  4. Step 4: Simplify right side
    818,057.30x = 578,579,873,229.27
  5. Step 5: Solve for x
    x = 578,579,873,229.27/818,057.30
  6. Step 6: Final answer
    x = 707,260.82

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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.