Home / 723,085.11-997,855.73-396,397.54

Finding the Fourth Proportional to 723,085.11, 997,855.73 and 396,397.54

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Solution

The fourth proportional to 723,085.11, 997,855.73 and 396,397.54 is: 547,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,085.11 : 997,855.73 = 396,397.54 : x
  2. Step 2: Convert to fraction form
    723,085.11/997,855.73 = 396,397.54/x
  3. Step 3: Cross multiply
    723,085.11x = 997,855.73 × 396,397.54
  4. Step 4: Simplify right side
    723,085.11x = 395,547,556,646.90
  5. Step 5: Solve for x
    x = 395,547,556,646.90/723,085.11
  6. Step 6: Final answer
    x = 547,027.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.