Home / 1,147,353.12-1,720,253.16-642,262.70

Finding the Fourth Proportional to 1,147,353.12, 1,720,253.16 and 642,262.70

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Solution

The fourth proportional to 1,147,353.12, 1,720,253.16 and 642,262.70 is: 962,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,353.12 : 1,720,253.16 = 642,262.70 : x
  2. Step 2: Convert to fraction form
    1,147,353.12/1,720,253.16 = 642,262.70/x
  3. Step 3: Cross multiply
    1,147,353.12x = 1,720,253.16 × 642,262.70
  4. Step 4: Simplify right side
    1,147,353.12x = 1,104,854,443,525.76
  5. Step 5: Solve for x
    x = 1,104,854,443,525.76/1,147,353.12
  6. Step 6: Final answer
    x = 962,959.38

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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.