Home / 759,886.47-1,140,277.28-280,451.79

Finding the Fourth Proportional to 759,886.47, 1,140,277.28 and 280,451.79

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Solution

The fourth proportional to 759,886.47, 1,140,277.28 and 280,451.79 is: 420,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,886.47 : 1,140,277.28 = 280,451.79 : x
  2. Step 2: Convert to fraction form
    759,886.47/1,140,277.28 = 280,451.79/x
  3. Step 3: Cross multiply
    759,886.47x = 1,140,277.28 × 280,451.79
  4. Step 4: Simplify right side
    759,886.47x = 319,792,802,870.07
  5. Step 5: Solve for x
    x = 319,792,802,870.07/759,886.47
  6. Step 6: Final answer
    x = 420,842.87

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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.