Home / 1,345,403.76-1,864,671.69-1,320,209.52

Finding the Fourth Proportional to 1,345,403.76, 1,864,671.69 and 1,320,209.52

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Solution

The fourth proportional to 1,345,403.76, 1,864,671.69 and 1,320,209.52 is: 1,829,753.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,403.76 : 1,864,671.69 = 1,320,209.52 : x
  2. Step 2: Convert to fraction form
    1,345,403.76/1,864,671.69 = 1,320,209.52/x
  3. Step 3: Cross multiply
    1,345,403.76x = 1,864,671.69 × 1,320,209.52
  4. Step 4: Simplify right side
    1,345,403.76x = 2,461,757,316,812.49
  5. Step 5: Solve for x
    x = 2,461,757,316,812.49/1,345,403.76
  6. Step 6: Final answer
    x = 1,829,753.56

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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.