Home / 806,615.08-1,209,830.46-215,685.16

Finding the Fourth Proportional to 806,615.08, 1,209,830.46 and 215,685.16

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Solution

The fourth proportional to 806,615.08, 1,209,830.46 and 215,685.16 is: 323,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,615.08 : 1,209,830.46 = 215,685.16 : x
  2. Step 2: Convert to fraction form
    806,615.08/1,209,830.46 = 215,685.16/x
  3. Step 3: Cross multiply
    806,615.08x = 1,209,830.46 × 215,685.16
  4. Step 4: Simplify right side
    806,615.08x = 260,942,476,337.97
  5. Step 5: Solve for x
    x = 260,942,476,337.97/806,615.08
  6. Step 6: Final answer
    x = 323,503.10

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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.