Home / 778,975.20-1,168,981.20-442,015.20

Finding the Fourth Proportional to 778,975.20, 1,168,981.20 and 442,015.20

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Solution

The fourth proportional to 778,975.20, 1,168,981.20 and 442,015.20 is: 663,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,975.20 : 1,168,981.20 = 442,015.20 : x
  2. Step 2: Convert to fraction form
    778,975.20/1,168,981.20 = 442,015.20/x
  3. Step 3: Cross multiply
    778,975.20x = 1,168,981.20 × 442,015.20
  4. Step 4: Simplify right side
    778,975.20x = 516,707,458,914.24
  5. Step 5: Solve for x
    x = 516,707,458,914.24/778,975.20
  6. Step 6: Final answer
    x = 663,316.96

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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.