Home / 1,021,276.13-1,531,776.29-422,154.18

Finding the Fourth Proportional to 1,021,276.13, 1,531,776.29 and 422,154.18

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Solution

The fourth proportional to 1,021,276.13, 1,531,776.29 and 422,154.18 is: 633,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,276.13 : 1,531,776.29 = 422,154.18 : x
  2. Step 2: Convert to fraction form
    1,021,276.13/1,531,776.29 = 422,154.18/x
  3. Step 3: Cross multiply
    1,021,276.13x = 1,531,776.29 × 422,154.18
  4. Step 4: Simplify right side
    1,021,276.13x = 646,645,761,537.62
  5. Step 5: Solve for x
    x = 646,645,761,537.62/1,021,276.13
  6. Step 6: Final answer
    x = 633,174.27

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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.