Home / 1,291,260.16-1,782,157.44-747,411.20

Finding the Fourth Proportional to 1,291,260.16, 1,782,157.44 and 747,411.20

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Solution

The fourth proportional to 1,291,260.16, 1,782,157.44 and 747,411.20 is: 1,031,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,260.16 : 1,782,157.44 = 747,411.20 : x
  2. Step 2: Convert to fraction form
    1,291,260.16/1,782,157.44 = 747,411.20/x
  3. Step 3: Cross multiply
    1,291,260.16x = 1,782,157.44 × 747,411.20
  4. Step 4: Simplify right side
    1,291,260.16x = 1,332,004,430,819.33
  5. Step 5: Solve for x
    x = 1,332,004,430,819.33/1,291,260.16
  6. Step 6: Final answer
    x = 1,031,553.88

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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.