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Finding the Fourth Proportional to 355,604.32, 532,844.70 and 288,717.66

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Solution

The fourth proportional to 355,604.32, 532,844.70 and 288,717.66 is: 432,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,604.32 : 532,844.70 = 288,717.66 : x
  2. Step 2: Convert to fraction form
    355,604.32/532,844.70 = 288,717.66/x
  3. Step 3: Cross multiply
    355,604.32x = 532,844.70 × 288,717.66
  4. Step 4: Simplify right side
    355,604.32x = 153,841,673,844.71
  5. Step 5: Solve for x
    x = 153,841,673,844.71/355,604.32
  6. Step 6: Final answer
    x = 432,620.37

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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.