Home / 1,321,407.95-1,823,670.96-740,729.72

Finding the Fourth Proportional to 1,321,407.95, 1,823,670.96 and 740,729.72

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Solution

The fourth proportional to 1,321,407.95, 1,823,670.96 and 740,729.72 is: 1,022,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,407.95 : 1,823,670.96 = 740,729.72 : x
  2. Step 2: Convert to fraction form
    1,321,407.95/1,823,670.96 = 740,729.72/x
  3. Step 3: Cross multiply
    1,321,407.95x = 1,823,670.96 × 740,729.72
  4. Step 4: Simplify right side
    1,321,407.95x = 1,350,847,283,918.89
  5. Step 5: Solve for x
    x = 1,350,847,283,918.89/1,321,407.95
  6. Step 6: Final answer
    x = 1,022,278.76

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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.