Home / 1,421,335.30-2,131,769.42-510,329.18

Finding the Fourth Proportional to 1,421,335.30, 2,131,769.42 and 510,329.18

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Solution

The fourth proportional to 1,421,335.30, 2,131,769.42 and 510,329.18 is: 765,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,335.30 : 2,131,769.42 = 510,329.18 : x
  2. Step 2: Convert to fraction form
    1,421,335.30/2,131,769.42 = 510,329.18/x
  3. Step 3: Cross multiply
    1,421,335.30x = 2,131,769.42 × 510,329.18
  4. Step 4: Simplify right side
    1,421,335.30x = 1,087,904,140,057.68
  5. Step 5: Solve for x
    x = 1,087,904,140,057.68/1,421,335.30
  6. Step 6: Final answer
    x = 765,409.92

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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.