Home / 389,587.10-584,402.79-109,126.22

Finding the Fourth Proportional to 389,587.10, 584,402.79 and 109,126.22

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Solution

The fourth proportional to 389,587.10, 584,402.79 and 109,126.22 is: 163,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,587.10 : 584,402.79 = 109,126.22 : x
  2. Step 2: Convert to fraction form
    389,587.10/584,402.79 = 109,126.22/x
  3. Step 3: Cross multiply
    389,587.10x = 584,402.79 × 109,126.22
  4. Step 4: Simplify right side
    389,587.10x = 63,773,667,430.15
  5. Step 5: Solve for x
    x = 63,773,667,430.15/389,587.10
  6. Step 6: Final answer
    x = 163,695.53

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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.