Home / 902,765.70-1,245,949.29-520,717.86

Finding the Fourth Proportional to 902,765.70, 1,245,949.29 and 520,717.86

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Solution

The fourth proportional to 902,765.70, 1,245,949.29 and 520,717.86 is: 718,667.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,765.70 : 1,245,949.29 = 520,717.86 : x
  2. Step 2: Convert to fraction form
    902,765.70/1,245,949.29 = 520,717.86/x
  3. Step 3: Cross multiply
    902,765.70x = 1,245,949.29 × 520,717.86
  4. Step 4: Simplify right side
    902,765.70x = 648,788,047,957.32
  5. Step 5: Solve for x
    x = 648,788,047,957.32/902,765.70
  6. Step 6: Final answer
    x = 718,667.14

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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.