Home / 1,157,388.45-1,597,178.76-641,140.80

Finding the Fourth Proportional to 1,157,388.45, 1,597,178.76 and 641,140.80

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Solution

The fourth proportional to 1,157,388.45, 1,597,178.76 and 641,140.80 is: 884,764.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,388.45 : 1,597,178.76 = 641,140.80 : x
  2. Step 2: Convert to fraction form
    1,157,388.45/1,597,178.76 = 641,140.80/x
  3. Step 3: Cross multiply
    1,157,388.45x = 1,597,178.76 × 641,140.80
  4. Step 4: Simplify right side
    1,157,388.45x = 1,024,016,473,929.47
  5. Step 5: Solve for x
    x = 1,024,016,473,929.47/1,157,388.45
  6. Step 6: Final answer
    x = 884,764.72

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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.