Home / 1,222,938.44-1,687,810.77-739,507.05

Finding the Fourth Proportional to 1,222,938.44, 1,687,810.77 and 739,507.05

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Solution

The fourth proportional to 1,222,938.44, 1,687,810.77 and 739,507.05 is: 1,020,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,938.44 : 1,687,810.77 = 739,507.05 : x
  2. Step 2: Convert to fraction form
    1,222,938.44/1,687,810.77 = 739,507.05/x
  3. Step 3: Cross multiply
    1,222,938.44x = 1,687,810.77 × 739,507.05
  4. Step 4: Simplify right side
    1,222,938.44x = 1,248,147,963,480.93
  5. Step 5: Solve for x
    x = 1,248,147,963,480.93/1,222,938.44
  6. Step 6: Final answer
    x = 1,020,613.90

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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.