Home / 631,216.10-871,083.80-359,301.50

Finding the Fourth Proportional to 631,216.10, 871,083.80 and 359,301.50

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Solution

The fourth proportional to 631,216.10, 871,083.80 and 359,301.50 is: 495,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,216.10 : 871,083.80 = 359,301.50 : x
  2. Step 2: Convert to fraction form
    631,216.10/871,083.80 = 359,301.50/x
  3. Step 3: Cross multiply
    631,216.10x = 871,083.80 × 359,301.50
  4. Step 4: Simplify right side
    631,216.10x = 312,981,714,169.19
  5. Step 5: Solve for x
    x = 312,981,714,169.19/631,216.10
  6. Step 6: Final answer
    x = 495,839.24

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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.