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Finding the Fourth Proportional to 537,445.04, 806,306.06 and 385,817.90

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Solution

The fourth proportional to 537,445.04, 806,306.06 and 385,817.90 is: 578,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,445.04 : 806,306.06 = 385,817.90 : x
  2. Step 2: Convert to fraction form
    537,445.04/806,306.06 = 385,817.90/x
  3. Step 3: Cross multiply
    537,445.04x = 806,306.06 × 385,817.90
  4. Step 4: Simplify right side
    537,445.04x = 311,087,307,759.49
  5. Step 5: Solve for x
    x = 311,087,307,759.49/537,445.04
  6. Step 6: Final answer
    x = 578,826.28

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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.