Home / 825,632.79-1,138,889.36-519,223.16

Finding the Fourth Proportional to 825,632.79, 1,138,889.36 and 519,223.16

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Solution

The fourth proportional to 825,632.79, 1,138,889.36 and 519,223.16 is: 716,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,632.79 : 1,138,889.36 = 519,223.16 : x
  2. Step 2: Convert to fraction form
    825,632.79/1,138,889.36 = 519,223.16/x
  3. Step 3: Cross multiply
    825,632.79x = 1,138,889.36 × 519,223.16
  4. Step 4: Simplify right side
    825,632.79x = 591,337,726,695.13
  5. Step 5: Solve for x
    x = 591,337,726,695.13/825,632.79
  6. Step 6: Final answer
    x = 716,223.65

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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.