Home / 869,750.70-1,200,264.66-487,769.28

Finding the Fourth Proportional to 869,750.70, 1,200,264.66 and 487,769.28

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Solution

The fourth proportional to 869,750.70, 1,200,264.66 and 487,769.28 is: 673,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,750.70 : 1,200,264.66 = 487,769.28 : x
  2. Step 2: Convert to fraction form
    869,750.70/1,200,264.66 = 487,769.28/x
  3. Step 3: Cross multiply
    869,750.70x = 1,200,264.66 × 487,769.28
  4. Step 4: Simplify right side
    869,750.70x = 585,452,229,017.65
  5. Step 5: Solve for x
    x = 585,452,229,017.65/869,750.70
  6. Step 6: Final answer
    x = 673,126.48

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1.5x scale

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.