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Finding the Fourth Proportional to 1,147,556.07, 1,582,737.71 and 739,724.31

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Solution

The fourth proportional to 1,147,556.07, 1,582,737.71 and 739,724.31 is: 1,020,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,556.07 : 1,582,737.71 = 739,724.31 : x
  2. Step 2: Convert to fraction form
    1,147,556.07/1,582,737.71 = 739,724.31/x
  3. Step 3: Cross multiply
    1,147,556.07x = 1,582,737.71 × 739,724.31
  4. Step 4: Simplify right side
    1,147,556.07x = 1,170,789,556,742.11
  5. Step 5: Solve for x
    x = 1,170,789,556,742.11/1,147,556.07
  6. Step 6: Final answer
    x = 1,020,246.06

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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.