Home / 767,769.17-1,059,544.19-428,230.13

Finding the Fourth Proportional to 767,769.17, 1,059,544.19 and 428,230.13

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Solution

The fourth proportional to 767,769.17, 1,059,544.19 and 428,230.13 is: 590,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,769.17 : 1,059,544.19 = 428,230.13 : x
  2. Step 2: Convert to fraction form
    767,769.17/1,059,544.19 = 428,230.13/x
  3. Step 3: Cross multiply
    767,769.17x = 1,059,544.19 × 428,230.13
  4. Step 4: Simplify right side
    767,769.17x = 453,728,741,997.30
  5. Step 5: Solve for x
    x = 453,728,741,997.30/767,769.17
  6. Step 6: Final answer
    x = 590,970.26

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Double scale
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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.