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Finding the Fourth Proportional to 553,677.20, 777,247.60 and 553,677.20

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Solution

The fourth proportional to 553,677.20, 777,247.60 and 553,677.20 is: 777,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,677.20 : 777,247.60 = 553,677.20 : x
  2. Step 2: Convert to fraction form
    553,677.20/777,247.60 = 553,677.20/x
  3. Step 3: Cross multiply
    553,677.20x = 777,247.60 × 553,677.20
  4. Step 4: Simplify right side
    553,677.20x = 430,344,274,874.72
  5. Step 5: Solve for x
    x = 430,344,274,874.72/553,677.20
  6. Step 6: Final answer
    x = 777,247.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.