Home / 1,157,905.47-1,597,998.20-728,553.63

Finding the Fourth Proportional to 1,157,905.47, 1,597,998.20 and 728,553.63

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Solution

The fourth proportional to 1,157,905.47, 1,597,998.20 and 728,553.63 is: 1,005,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,905.47 : 1,597,998.20 = 728,553.63 : x
  2. Step 2: Convert to fraction form
    1,157,905.47/1,597,998.20 = 728,553.63/x
  3. Step 3: Cross multiply
    1,157,905.47x = 1,597,998.20 × 728,553.63
  4. Step 4: Simplify right side
    1,157,905.47x = 1,164,227,385,700.70
  5. Step 5: Solve for x
    x = 1,164,227,385,700.70/1,157,905.47
  6. Step 6: Final answer
    x = 1,005,459.79

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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.