Home / 1,158,616.33-1,598,984.76-642,421.45

Finding the Fourth Proportional to 1,158,616.33, 1,598,984.76 and 642,421.45

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Solution

The fourth proportional to 1,158,616.33, 1,598,984.76 and 642,421.45 is: 886,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,616.33 : 1,598,984.76 = 642,421.45 : x
  2. Step 2: Convert to fraction form
    1,158,616.33/1,598,984.76 = 642,421.45/x
  3. Step 3: Cross multiply
    1,158,616.33x = 1,598,984.76 × 642,421.45
  4. Step 4: Simplify right side
    1,158,616.33x = 1,027,222,108,047.10
  5. Step 5: Solve for x
    x = 1,027,222,108,047.10/1,158,616.33
  6. Step 6: Final answer
    x = 886,593.85

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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.