Home / 648,943.38-973,449.72-199,972.62

Finding the Fourth Proportional to 648,943.38, 973,449.72 and 199,972.62

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Solution

The fourth proportional to 648,943.38, 973,449.72 and 199,972.62 is: 299,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,943.38 : 973,449.72 = 199,972.62 : x
  2. Step 2: Convert to fraction form
    648,943.38/973,449.72 = 199,972.62/x
  3. Step 3: Cross multiply
    648,943.38x = 973,449.72 × 199,972.62
  4. Step 4: Simplify right side
    648,943.38x = 194,663,290,946.67
  5. Step 5: Solve for x
    x = 194,663,290,946.67/648,943.38
  6. Step 6: Final answer
    x = 299,969.61

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Double scale
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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.