Home / 743,542.65-1,115,311.73-211,064.13

Finding the Fourth Proportional to 743,542.65, 1,115,311.73 and 211,064.13

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Solution

The fourth proportional to 743,542.65, 1,115,311.73 and 211,064.13 is: 316,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,542.65 : 1,115,311.73 = 211,064.13 : x
  2. Step 2: Convert to fraction form
    743,542.65/1,115,311.73 = 211,064.13/x
  3. Step 3: Cross multiply
    743,542.65x = 1,115,311.73 × 211,064.13
  4. Step 4: Simplify right side
    743,542.65x = 235,402,299,971.25
  5. Step 5: Solve for x
    x = 235,402,299,971.25/743,542.65
  6. Step 6: Final answer
    x = 316,595.56

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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.