Home / 431,238.20-646,857.30-369,030.20

Finding the Fourth Proportional to 431,238.20, 646,857.30 and 369,030.20

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Solution

The fourth proportional to 431,238.20, 646,857.30 and 369,030.20 is: 553,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,238.20 : 646,857.30 = 369,030.20 : x
  2. Step 2: Convert to fraction form
    431,238.20/646,857.30 = 369,030.20/x
  3. Step 3: Cross multiply
    431,238.20x = 646,857.30 × 369,030.20
  4. Step 4: Simplify right side
    431,238.20x = 238,709,878,790.46
  5. Step 5: Solve for x
    x = 238,709,878,790.46/431,238.20
  6. Step 6: Final answer
    x = 553,545.30

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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.