Home / 1,345,403.39-1,864,671.17-1,320,209.15

Finding the Fourth Proportional to 1,345,403.39, 1,864,671.17 and 1,320,209.15

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Solution

The fourth proportional to 1,345,403.39, 1,864,671.17 and 1,320,209.15 is: 1,829,753.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,403.39 : 1,864,671.17 = 1,320,209.15 : x
  2. Step 2: Convert to fraction form
    1,345,403.39/1,864,671.17 = 1,320,209.15/x
  3. Step 3: Cross multiply
    1,345,403.39x = 1,864,671.17 × 1,320,209.15
  4. Step 4: Simplify right side
    1,345,403.39x = 2,461,755,924,450.80
  5. Step 5: Solve for x
    x = 2,461,755,924,450.80/1,345,403.39
  6. Step 6: Final answer
    x = 1,829,753.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.