Home / 1,119,645.60-1,679,468.40-646,087.20

Finding the Fourth Proportional to 1,119,645.60, 1,679,468.40 and 646,087.20

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Solution

The fourth proportional to 1,119,645.60, 1,679,468.40 and 646,087.20 is: 969,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,645.60 : 1,679,468.40 = 646,087.20 : x
  2. Step 2: Convert to fraction form
    1,119,645.60/1,679,468.40 = 646,087.20/x
  3. Step 3: Cross multiply
    1,119,645.60x = 1,679,468.40 × 646,087.20
  4. Step 4: Simplify right side
    1,119,645.60x = 1,085,083,036,044.48
  5. Step 5: Solve for x
    x = 1,085,083,036,044.48/1,119,645.60
  6. Step 6: Final answer
    x = 969,130.80

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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.