Home / 1,085,641.60-1,628,462.40-816,203.20

Finding the Fourth Proportional to 1,085,641.60, 1,628,462.40 and 816,203.20

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Solution

The fourth proportional to 1,085,641.60, 1,628,462.40 and 816,203.20 is: 1,224,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,641.60 : 1,628,462.40 = 816,203.20 : x
  2. Step 2: Convert to fraction form
    1,085,641.60/1,628,462.40 = 816,203.20/x
  3. Step 3: Cross multiply
    1,085,641.60x = 1,628,462.40 × 816,203.20
  4. Step 4: Simplify right side
    1,085,641.60x = 1,329,156,221,959.68
  5. Step 5: Solve for x
    x = 1,329,156,221,959.68/1,085,641.60
  6. Step 6: Final answer
    x = 1,224,304.80

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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.