Home / 1,118,749.55-1,679,587.79-664,170.66

Finding the Fourth Proportional to 1,118,749.55, 1,679,587.79 and 664,170.66

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Solution

The fourth proportional to 1,118,749.55, 1,679,587.79 and 664,170.66 is: 997,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,749.55 : 1,679,587.79 = 664,170.66 : x
  2. Step 2: Convert to fraction form
    1,118,749.55/1,679,587.79 = 664,170.66/x
  3. Step 3: Cross multiply
    1,118,749.55x = 1,679,587.79 × 664,170.66
  4. Step 4: Simplify right side
    1,118,749.55x = 1,115,532,927,691.39
  5. Step 5: Solve for x
    x = 1,115,532,927,691.39/1,118,749.55
  6. Step 6: Final answer
    x = 997,124.81

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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.