Home / 778,243.80-1,167,278.10-209,666.88

Finding the Fourth Proportional to 778,243.80, 1,167,278.10 and 209,666.88

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Solution

The fourth proportional to 778,243.80, 1,167,278.10 and 209,666.88 is: 314,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,243.80 : 1,167,278.10 = 209,666.88 : x
  2. Step 2: Convert to fraction form
    778,243.80/1,167,278.10 = 209,666.88/x
  3. Step 3: Cross multiply
    778,243.80x = 1,167,278.10 × 209,666.88
  4. Step 4: Simplify right side
    778,243.80x = 244,739,557,319.33
  5. Step 5: Solve for x
    x = 244,739,557,319.33/778,243.80
  6. Step 6: Final answer
    x = 314,476.72

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1.5x scale

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.