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Finding the Fourth Proportional to 435,005.34, 652,482.03 and 258,634.72

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Solution

The fourth proportional to 435,005.34, 652,482.03 and 258,634.72 is: 387,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,005.34 : 652,482.03 = 258,634.72 : x
  2. Step 2: Convert to fraction form
    435,005.34/652,482.03 = 258,634.72/x
  3. Step 3: Cross multiply
    435,005.34x = 652,482.03 × 258,634.72
  4. Step 4: Simplify right side
    435,005.34x = 168,754,508,919.56
  5. Step 5: Solve for x
    x = 168,754,508,919.56/435,005.34
  6. Step 6: Final answer
    x = 387,936.64

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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.