Home / 1,427,943.60-2,142,012.60-455,230.80

Finding the Fourth Proportional to 1,427,943.60, 2,142,012.60 and 455,230.80

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Solution

The fourth proportional to 1,427,943.60, 2,142,012.60 and 455,230.80 is: 682,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,943.60 : 2,142,012.60 = 455,230.80 : x
  2. Step 2: Convert to fraction form
    1,427,943.60/2,142,012.60 = 455,230.80/x
  3. Step 3: Cross multiply
    1,427,943.60x = 2,142,012.60 × 455,230.80
  4. Step 4: Simplify right side
    1,427,943.60x = 975,110,109,508.08
  5. Step 5: Solve for x
    x = 975,110,109,508.08/1,427,943.60
  6. Step 6: Final answer
    x = 682,877.19

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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.