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Finding the Fourth Proportional to 806,502.90, 1,209,754.35 and 245,537.40

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Solution

The fourth proportional to 806,502.90, 1,209,754.35 and 245,537.40 is: 368,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,502.90 : 1,209,754.35 = 245,537.40 : x
  2. Step 2: Convert to fraction form
    806,502.90/1,209,754.35 = 245,537.40/x
  3. Step 3: Cross multiply
    806,502.90x = 1,209,754.35 × 245,537.40
  4. Step 4: Simplify right side
    806,502.90x = 297,039,937,737.69
  5. Step 5: Solve for x
    x = 297,039,937,737.69/806,502.90
  6. Step 6: Final answer
    x = 368,306.10

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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.