Home / 558,117.20-836,657.40-389,637.20

Finding the Fourth Proportional to 558,117.20, 836,657.40 and 389,637.20

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Solution

The fourth proportional to 558,117.20, 836,657.40 and 389,637.20 is: 584,093.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,117.20 : 836,657.40 = 389,637.20 : x
  2. Step 2: Convert to fraction form
    558,117.20/836,657.40 = 389,637.20/x
  3. Step 3: Cross multiply
    558,117.20x = 836,657.40 × 389,637.20
  4. Step 4: Simplify right side
    558,117.20x = 325,992,846,695.28
  5. Step 5: Solve for x
    x = 325,992,846,695.28/558,117.20
  6. Step 6: Final answer
    x = 584,093.89

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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.