Home / 1,340,447.32-1,849,829.69-728,601.52

Finding the Fourth Proportional to 1,340,447.32, 1,849,829.69 and 728,601.52

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Solution

The fourth proportional to 1,340,447.32, 1,849,829.69 and 728,601.52 is: 1,005,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,447.32 : 1,849,829.69 = 728,601.52 : x
  2. Step 2: Convert to fraction form
    1,340,447.32/1,849,829.69 = 728,601.52/x
  3. Step 3: Cross multiply
    1,340,447.32x = 1,849,829.69 × 728,601.52
  4. Step 4: Simplify right side
    1,340,447.32x = 1,347,788,723,875.13
  5. Step 5: Solve for x
    x = 1,347,788,723,875.13/1,340,447.32
  6. Step 6: Final answer
    x = 1,005,476.83

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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.