Home / 739,663.28-1,020,725.35-412,981.30

Finding the Fourth Proportional to 739,663.28, 1,020,725.35 and 412,981.30

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Solution

The fourth proportional to 739,663.28, 1,020,725.35 and 412,981.30 is: 569,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,663.28 : 1,020,725.35 = 412,981.30 : x
  2. Step 2: Convert to fraction form
    739,663.28/1,020,725.35 = 412,981.30/x
  3. Step 3: Cross multiply
    739,663.28x = 1,020,725.35 × 412,981.30
  4. Step 4: Simplify right side
    739,663.28x = 421,540,476,882.33
  5. Step 5: Solve for x
    x = 421,540,476,882.33/739,663.28
  6. Step 6: Final answer
    x = 569,908.62

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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.