Home / 787,862.30-1,182,162.50-388,285.11

Finding the Fourth Proportional to 787,862.30, 1,182,162.50 and 388,285.11

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Solution

The fourth proportional to 787,862.30, 1,182,162.50 and 388,285.11 is: 582,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,862.30 : 1,182,162.50 = 388,285.11 : x
  2. Step 2: Convert to fraction form
    787,862.30/1,182,162.50 = 388,285.11/x
  3. Step 3: Cross multiply
    787,862.30x = 1,182,162.50 × 388,285.11
  4. Step 4: Simplify right side
    787,862.30x = 459,016,088,498.14
  5. Step 5: Solve for x
    x = 459,016,088,498.14/787,862.30
  6. Step 6: Final answer
    x = 582,609.54

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1.5x scale

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.