Home / 1,427,011.36-2,139,177.84-479,719.60

Finding the Fourth Proportional to 1,427,011.36, 2,139,177.84 and 479,719.60

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Solution

The fourth proportional to 1,427,011.36, 2,139,177.84 and 479,719.60 is: 719,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,011.36 : 2,139,177.84 = 479,719.60 : x
  2. Step 2: Convert to fraction form
    1,427,011.36/2,139,177.84 = 479,719.60/x
  3. Step 3: Cross multiply
    1,427,011.36x = 2,139,177.84 × 479,719.60
  4. Step 4: Simplify right side
    1,427,011.36x = 1,026,205,537,733.66
  5. Step 5: Solve for x
    x = 1,026,205,537,733.66/1,427,011.36
  6. Step 6: Final answer
    x = 719,129.20

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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.