Home / 1,439,959.60-1,987,399.02-828,064

Finding the Fourth Proportional to 1,439,959.60, 1,987,399.02 and 828,064

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Solution

The fourth proportional to 1,439,959.60, 1,987,399.02 and 828,064 is: 1,142,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,959.60 : 1,987,399.02 = 828,064 : x
  2. Step 2: Convert to fraction form
    1,439,959.60/1,987,399.02 = 828,064/x
  3. Step 3: Cross multiply
    1,439,959.60x = 1,987,399.02 × 828,064
  4. Step 4: Simplify right side
    1,439,959.60x = 1,645,693,582,097.28
  5. Step 5: Solve for x
    x = 1,645,693,582,097.28/1,439,959.60
  6. Step 6: Final answer
    x = 1,142,874.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.