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Finding the Fourth Proportional to 652,310.96, 900,287.52 and 397,809.78

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Solution

The fourth proportional to 652,310.96, 900,287.52 and 397,809.78 is: 549,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,310.96 : 900,287.52 = 397,809.78 : x
  2. Step 2: Convert to fraction form
    652,310.96/900,287.52 = 397,809.78/x
  3. Step 3: Cross multiply
    652,310.96x = 900,287.52 × 397,809.78
  4. Step 4: Simplify right side
    652,310.96x = 358,143,180,267.95
  5. Step 5: Solve for x
    x = 358,143,180,267.95/652,310.96
  6. Step 6: Final answer
    x = 549,037.50

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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.