Home / 1,361,424.60-2,042,136.90-1,272,851.10

Finding the Fourth Proportional to 1,361,424.60, 2,042,136.90 and 1,272,851.10

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Solution

The fourth proportional to 1,361,424.60, 2,042,136.90 and 1,272,851.10 is: 1,909,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,424.60 : 2,042,136.90 = 1,272,851.10 : x
  2. Step 2: Convert to fraction form
    1,361,424.60/2,042,136.90 = 1,272,851.10/x
  3. Step 3: Cross multiply
    1,361,424.60x = 2,042,136.90 × 1,272,851.10
  4. Step 4: Simplify right side
    1,361,424.60x = 2,599,336,199,515.59
  5. Step 5: Solve for x
    x = 2,599,336,199,515.59/1,361,424.60
  6. Step 6: Final answer
    x = 1,909,276.65

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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.