Home / 389,530.32-584,289.36-199,881.24

Finding the Fourth Proportional to 389,530.32, 584,289.36 and 199,881.24

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Solution

The fourth proportional to 389,530.32, 584,289.36 and 199,881.24 is: 299,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,530.32 : 584,289.36 = 199,881.24 : x
  2. Step 2: Convert to fraction form
    389,530.32/584,289.36 = 199,881.24/x
  3. Step 3: Cross multiply
    389,530.32x = 584,289.36 × 199,881.24
  4. Step 4: Simplify right side
    389,530.32x = 116,788,481,795.61
  5. Step 5: Solve for x
    x = 116,788,481,795.61/389,530.32
  6. Step 6: Final answer
    x = 299,818.72

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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.