Home / 957,422.40-1,434,238.20-620,697.30

Finding the Fourth Proportional to 957,422.40, 1,434,238.20 and 620,697.30

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Solution

The fourth proportional to 957,422.40, 1,434,238.20 and 620,697.30 is: 929,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,422.40 : 1,434,238.20 = 620,697.30 : x
  2. Step 2: Convert to fraction form
    957,422.40/1,434,238.20 = 620,697.30/x
  3. Step 3: Cross multiply
    957,422.40x = 1,434,238.20 × 620,697.30
  4. Step 4: Simplify right side
    957,422.40x = 890,227,778,296.86
  5. Step 5: Solve for x
    x = 890,227,778,296.86/957,422.40
  6. Step 6: Final answer
    x = 929,817.16

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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.