Home / 766,724.10-1,149,686.55-286,557.18

Finding the Fourth Proportional to 766,724.10, 1,149,686.55 and 286,557.18

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Solution

The fourth proportional to 766,724.10, 1,149,686.55 and 286,557.18 is: 429,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,724.10 : 1,149,686.55 = 286,557.18 : x
  2. Step 2: Convert to fraction form
    766,724.10/1,149,686.55 = 286,557.18/x
  3. Step 3: Cross multiply
    766,724.10x = 1,149,686.55 × 286,557.18
  4. Step 4: Simplify right side
    766,724.10x = 329,450,935,651.93
  5. Step 5: Solve for x
    x = 329,450,935,651.93/766,724.10
  6. Step 6: Final answer
    x = 429,686.42

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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.