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Finding the Fourth Proportional to 537,145.80, 804,843.90 and 395,428.20

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Solution

The fourth proportional to 537,145.80, 804,843.90 and 395,428.20 is: 592,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,145.80 : 804,843.90 = 395,428.20 : x
  2. Step 2: Convert to fraction form
    537,145.80/804,843.90 = 395,428.20/x
  3. Step 3: Cross multiply
    537,145.80x = 804,843.90 × 395,428.20
  4. Step 4: Simplify right side
    537,145.80x = 318,257,974,657.98
  5. Step 5: Solve for x
    x = 318,257,974,657.98/537,145.80
  6. Step 6: Final answer
    x = 592,498.30

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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.