Home / 767,586.60-1,059,246.18-428,112.36

Finding the Fourth Proportional to 767,586.60, 1,059,246.18 and 428,112.36

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Solution

The fourth proportional to 767,586.60, 1,059,246.18 and 428,112.36 is: 590,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,586.60 : 1,059,246.18 = 428,112.36 : x
  2. Step 2: Convert to fraction form
    767,586.60/1,059,246.18 = 428,112.36/x
  3. Step 3: Cross multiply
    767,586.60x = 1,059,246.18 × 428,112.36
  4. Step 4: Simplify right side
    767,586.60x = 453,476,381,940.79
  5. Step 5: Solve for x
    x = 453,476,381,940.79/767,586.60
  6. Step 6: Final answer
    x = 590,782.05

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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.