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Finding the Fourth Proportional to 553,314.70, 829,972.05 and 343,362.70

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Solution

The fourth proportional to 553,314.70, 829,972.05 and 343,362.70 is: 515,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,314.70 : 829,972.05 = 343,362.70 : x
  2. Step 2: Convert to fraction form
    553,314.70/829,972.05 = 343,362.70/x
  3. Step 3: Cross multiply
    553,314.70x = 829,972.05 × 343,362.70
  4. Step 4: Simplify right side
    553,314.70x = 284,981,444,012.54
  5. Step 5: Solve for x
    x = 284,981,444,012.54/553,314.70
  6. Step 6: Final answer
    x = 515,044.05

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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.