Home / 1,283,283.72-1,771,121.40-739,316.08

Finding the Fourth Proportional to 1,283,283.72, 1,771,121.40 and 739,316.08

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Solution

The fourth proportional to 1,283,283.72, 1,771,121.40 and 739,316.08 is: 1,020,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,283.72 : 1,771,121.40 = 739,316.08 : x
  2. Step 2: Convert to fraction form
    1,283,283.72/1,771,121.40 = 739,316.08/x
  3. Step 3: Cross multiply
    1,283,283.72x = 1,771,121.40 × 739,316.08
  4. Step 4: Simplify right side
    1,283,283.72x = 1,309,418,530,652.11
  5. Step 5: Solve for x
    x = 1,309,418,530,652.11/1,283,283.72
  6. Step 6: Final answer
    x = 1,020,365.57

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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.