Home / 778,834.60-1,168,409.85-442,036.60

Finding the Fourth Proportional to 778,834.60, 1,168,409.85 and 442,036.60

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Solution

The fourth proportional to 778,834.60, 1,168,409.85 and 442,036.60 is: 663,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,834.60 : 1,168,409.85 = 442,036.60 : x
  2. Step 2: Convert to fraction form
    778,834.60/1,168,409.85 = 442,036.60/x
  3. Step 3: Cross multiply
    778,834.60x = 1,168,409.85 × 442,036.60
  4. Step 4: Simplify right side
    778,834.60x = 516,479,917,500.51
  5. Step 5: Solve for x
    x = 516,479,917,500.51/778,834.60
  6. Step 6: Final answer
    x = 663,144.55

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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.