Home / 778,749.60-1,168,513.20-442,048.80

Finding the Fourth Proportional to 778,749.60, 1,168,513.20 and 442,048.80

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Solution

The fourth proportional to 778,749.60, 1,168,513.20 and 442,048.80 is: 663,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,749.60 : 1,168,513.20 = 442,048.80 : x
  2. Step 2: Convert to fraction form
    778,749.60/1,168,513.20 = 442,048.80/x
  3. Step 3: Cross multiply
    778,749.60x = 1,168,513.20 × 442,048.80
  4. Step 4: Simplify right side
    778,749.60x = 516,539,857,844.16
  5. Step 5: Solve for x
    x = 516,539,857,844.16/778,749.60
  6. Step 6: Final answer
    x = 663,293.90

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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.