Home / 1,272,472.34-1,908,691.68-312,936.22

Finding the Fourth Proportional to 1,272,472.34, 1,908,691.68 and 312,936.22

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Solution

The fourth proportional to 1,272,472.34, 1,908,691.68 and 312,936.22 is: 469,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,472.34 : 1,908,691.68 = 312,936.22 : x
  2. Step 2: Convert to fraction form
    1,272,472.34/1,908,691.68 = 312,936.22/x
  3. Step 3: Cross multiply
    1,272,472.34x = 1,908,691.68 × 312,936.22
  4. Step 4: Simplify right side
    1,272,472.34x = 597,298,759,484.65
  5. Step 5: Solve for x
    x = 597,298,759,484.65/1,272,472.34
  6. Step 6: Final answer
    x = 469,400.19

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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.