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Finding the Fourth Proportional to 553,266.80, 829,900.20 and 343,314.80

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Solution

The fourth proportional to 553,266.80, 829,900.20 and 343,314.80 is: 514,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,266.80 : 829,900.20 = 343,314.80 : x
  2. Step 2: Convert to fraction form
    553,266.80/829,900.20 = 343,314.80/x
  3. Step 3: Cross multiply
    553,266.80x = 829,900.20 × 343,314.80
  4. Step 4: Simplify right side
    553,266.80x = 284,917,021,182.96
  5. Step 5: Solve for x
    x = 284,917,021,182.96/553,266.80
  6. Step 6: Final answer
    x = 514,972.20

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Similar ratio
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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.