Home / 739,409.31-1,109,114.16-207,008.76

Finding the Fourth Proportional to 739,409.31, 1,109,114.16 and 207,008.76

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Solution

The fourth proportional to 739,409.31, 1,109,114.16 and 207,008.76 is: 310,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,409.31 : 1,109,114.16 = 207,008.76 : x
  2. Step 2: Convert to fraction form
    739,409.31/1,109,114.16 = 207,008.76/x
  3. Step 3: Cross multiply
    739,409.31x = 1,109,114.16 × 207,008.76
  4. Step 4: Simplify right side
    739,409.31x = 229,596,346,960.04
  5. Step 5: Solve for x
    x = 229,596,346,960.04/739,409.31
  6. Step 6: Final answer
    x = 310,513.19

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Double scale
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Similar ratio
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1.5x scale

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.