Home / 870,017.79-1,305,024.24-238,932.21

Finding the Fourth Proportional to 870,017.79, 1,305,024.24 and 238,932.21

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Solution

The fourth proportional to 870,017.79, 1,305,024.24 and 238,932.21 is: 358,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,017.79 : 1,305,024.24 = 238,932.21 : x
  2. Step 2: Convert to fraction form
    870,017.79/1,305,024.24 = 238,932.21/x
  3. Step 3: Cross multiply
    870,017.79x = 1,305,024.24 × 238,932.21
  4. Step 4: Simplify right side
    870,017.79x = 311,812,325,766.77
  5. Step 5: Solve for x
    x = 311,812,325,766.77/870,017.79
  6. Step 6: Final answer
    x = 358,397.64

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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.