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Finding the Fourth Proportional to 553,607.16, 763,818.66 and 360,299.44

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Solution

The fourth proportional to 553,607.16, 763,818.66 and 360,299.44 is: 497,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,607.16 : 763,818.66 = 360,299.44 : x
  2. Step 2: Convert to fraction form
    553,607.16/763,818.66 = 360,299.44/x
  3. Step 3: Cross multiply
    553,607.16x = 763,818.66 × 360,299.44
  4. Step 4: Simplify right side
    553,607.16x = 275,203,436,414.32
  5. Step 5: Solve for x
    x = 275,203,436,414.32/553,607.16
  6. Step 6: Final answer
    x = 497,109.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.