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Finding the Fourth Proportional to 537,196.80, 804,920.40 and 395,479.20

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Solution

The fourth proportional to 537,196.80, 804,920.40 and 395,479.20 is: 592,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,196.80 : 804,920.40 = 395,479.20 : x
  2. Step 2: Convert to fraction form
    537,196.80/804,920.40 = 395,479.20/x
  3. Step 3: Cross multiply
    537,196.80x = 804,920.40 × 395,479.20
  4. Step 4: Simplify right side
    537,196.80x = 318,329,275,855.68
  5. Step 5: Solve for x
    x = 318,329,275,855.68/537,196.80
  6. Step 6: Final answer
    x = 592,574.78

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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.