Home / 649,129.20-973,693.80-538,537.20

Finding the Fourth Proportional to 649,129.20, 973,693.80 and 538,537.20

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Solution

The fourth proportional to 649,129.20, 973,693.80 and 538,537.20 is: 807,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,129.20 : 973,693.80 = 538,537.20 : x
  2. Step 2: Convert to fraction form
    649,129.20/973,693.80 = 538,537.20/x
  3. Step 3: Cross multiply
    649,129.20x = 973,693.80 × 538,537.20
  4. Step 4: Simplify right side
    649,129.20x = 524,370,332,709.36
  5. Step 5: Solve for x
    x = 524,370,332,709.36/649,129.20
  6. Step 6: Final answer
    x = 807,805.80

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Double scale
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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.