Home / 1,168,861.32-1,752,239.34-420,381

Finding the Fourth Proportional to 1,168,861.32, 1,752,239.34 and 420,381

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Solution

The fourth proportional to 1,168,861.32, 1,752,239.34 and 420,381 is: 630,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,861.32 : 1,752,239.34 = 420,381 : x
  2. Step 2: Convert to fraction form
    1,168,861.32/1,752,239.34 = 420,381/x
  3. Step 3: Cross multiply
    1,168,861.32x = 1,752,239.34 × 420,381
  4. Step 4: Simplify right side
    1,168,861.32x = 736,608,125,988.54
  5. Step 5: Solve for x
    x = 736,608,125,988.54/1,168,861.32
  6. Step 6: Final answer
    x = 630,192.92

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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.