Home / 816,730.29-1,126,921.82-477,132.93

Finding the Fourth Proportional to 816,730.29, 1,126,921.82 and 477,132.93

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Solution

The fourth proportional to 816,730.29, 1,126,921.82 and 477,132.93 is: 658,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,730.29 : 1,126,921.82 = 477,132.93 : x
  2. Step 2: Convert to fraction form
    816,730.29/1,126,921.82 = 477,132.93/x
  3. Step 3: Cross multiply
    816,730.29x = 1,126,921.82 × 477,132.93
  4. Step 4: Simplify right side
    816,730.29x = 537,691,507,471.87
  5. Step 5: Solve for x
    x = 537,691,507,471.87/816,730.29
  6. Step 6: Final answer
    x = 658,346.48

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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.