Home / 778,245.80-1,167,281.10-209,668.88

Finding the Fourth Proportional to 778,245.80, 1,167,281.10 and 209,668.88

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Solution

The fourth proportional to 778,245.80, 1,167,281.10 and 209,668.88 is: 314,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,245.80 : 1,167,281.10 = 209,668.88 : x
  2. Step 2: Convert to fraction form
    778,245.80/1,167,281.10 = 209,668.88/x
  3. Step 3: Cross multiply
    778,245.80x = 1,167,281.10 × 209,668.88
  4. Step 4: Simplify right side
    778,245.80x = 244,742,520,882.17
  5. Step 5: Solve for x
    x = 244,742,520,882.17/778,245.80
  6. Step 6: Final answer
    x = 314,479.72

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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.