Home / 638,695.13-881,412.03-412,734.29

Finding the Fourth Proportional to 638,695.13, 881,412.03 and 412,734.29

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Solution

The fourth proportional to 638,695.13, 881,412.03 and 412,734.29 is: 569,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,695.13 : 881,412.03 = 412,734.29 : x
  2. Step 2: Convert to fraction form
    638,695.13/881,412.03 = 412,734.29/x
  3. Step 3: Cross multiply
    638,695.13x = 881,412.03 × 412,734.29
  4. Step 4: Simplify right side
    638,695.13x = 363,788,963,992.45
  5. Step 5: Solve for x
    x = 363,788,963,992.45/638,695.13
  6. Step 6: Final answer
    x = 569,581.56

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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.