Home / 778,219.16-1,167,364.52-238,436.78

Finding the Fourth Proportional to 778,219.16, 1,167,364.52 and 238,436.78

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Solution

The fourth proportional to 778,219.16, 1,167,364.52 and 238,436.78 is: 357,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,219.16 : 1,167,364.52 = 238,436.78 : x
  2. Step 2: Convert to fraction form
    778,219.16/1,167,364.52 = 238,436.78/x
  3. Step 3: Cross multiply
    778,219.16x = 1,167,364.52 × 238,436.78
  4. Step 4: Simplify right side
    778,219.16x = 278,342,630,206.04
  5. Step 5: Solve for x
    x = 278,342,630,206.04/778,219.16
  6. Step 6: Final answer
    x = 357,666.13

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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.