Home / 431,870.20-646,979.10-232,124.20

Finding the Fourth Proportional to 431,870.20, 646,979.10 and 232,124.20

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Solution

The fourth proportional to 431,870.20, 646,979.10 and 232,124.20 is: 347,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,870.20 : 646,979.10 = 232,124.20 : x
  2. Step 2: Convert to fraction form
    431,870.20/646,979.10 = 232,124.20/x
  3. Step 3: Cross multiply
    431,870.20x = 646,979.10 × 232,124.20
  4. Step 4: Simplify right side
    431,870.20x = 150,179,506,004.22
  5. Step 5: Solve for x
    x = 150,179,506,004.22/431,870.20
  6. Step 6: Final answer
    x = 347,742.23

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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.