Home / 806,609.08-1,209,821.46-215,679.16

Finding the Fourth Proportional to 806,609.08, 1,209,821.46 and 215,679.16

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Solution

The fourth proportional to 806,609.08, 1,209,821.46 and 215,679.16 is: 323,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,609.08 : 1,209,821.46 = 215,679.16 : x
  2. Step 2: Convert to fraction form
    806,609.08/1,209,821.46 = 215,679.16/x
  3. Step 3: Cross multiply
    806,609.08x = 1,209,821.46 × 215,679.16
  4. Step 4: Simplify right side
    806,609.08x = 260,933,276,242.77
  5. Step 5: Solve for x
    x = 260,933,276,242.77/806,609.08
  6. Step 6: Final answer
    x = 323,494.10

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1.5x scale

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.