Home / 808,515.20-1,212,335.40-335,248.40

Finding the Fourth Proportional to 808,515.20, 1,212,335.40 and 335,248.40

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Solution

The fourth proportional to 808,515.20, 1,212,335.40 and 335,248.40 is: 502,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,515.20 : 1,212,335.40 = 335,248.40 : x
  2. Step 2: Convert to fraction form
    808,515.20/1,212,335.40 = 335,248.40/x
  3. Step 3: Cross multiply
    808,515.20x = 1,212,335.40 × 335,248.40
  4. Step 4: Simplify right side
    808,515.20x = 406,433,503,113.36
  5. Step 5: Solve for x
    x = 406,433,503,113.36/808,515.20
  6. Step 6: Final answer
    x = 502,691.23

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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.