Home / 622,335.83-931,289.40-431,902.80

Finding the Fourth Proportional to 622,335.83, 931,289.40 and 431,902.80

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Solution

The fourth proportional to 622,335.83, 931,289.40 and 431,902.80 is: 646,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,335.83 : 931,289.40 = 431,902.80 : x
  2. Step 2: Convert to fraction form
    622,335.83/931,289.40 = 431,902.80/x
  3. Step 3: Cross multiply
    622,335.83x = 931,289.40 × 431,902.80
  4. Step 4: Simplify right side
    622,335.83x = 402,226,499,470.32
  5. Step 5: Solve for x
    x = 402,226,499,470.32/622,335.83
  6. Step 6: Final answer
    x = 646,317.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.