Home / 810,949.59-1,216,924.65-411,876.77

Finding the Fourth Proportional to 810,949.59, 1,216,924.65 and 411,876.77

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Solution

The fourth proportional to 810,949.59, 1,216,924.65 and 411,876.77 is: 618,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,949.59 : 1,216,924.65 = 411,876.77 : x
  2. Step 2: Convert to fraction form
    810,949.59/1,216,924.65 = 411,876.77/x
  3. Step 3: Cross multiply
    810,949.59x = 1,216,924.65 × 411,876.77
  4. Step 4: Simplify right side
    810,949.59x = 501,222,988,090.76
  5. Step 5: Solve for x
    x = 501,222,988,090.76/810,949.59
  6. Step 6: Final answer
    x = 618,069.23

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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.