Home / 1,561,587.65-2,154,125.42-908,142.13

Finding the Fourth Proportional to 1,561,587.65, 2,154,125.42 and 908,142.13

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Solution

The fourth proportional to 1,561,587.65, 2,154,125.42 and 908,142.13 is: 1,252,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,587.65 : 2,154,125.42 = 908,142.13 : x
  2. Step 2: Convert to fraction form
    1,561,587.65/2,154,125.42 = 908,142.13/x
  3. Step 3: Cross multiply
    1,561,587.65x = 2,154,125.42 × 908,142.13
  4. Step 4: Simplify right side
    1,561,587.65x = 1,956,252,037,279.92
  5. Step 5: Solve for x
    x = 1,956,252,037,279.92/1,561,587.65
  6. Step 6: Final answer
    x = 1,252,732.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.