Home / 957,420.40-1,434,235.20-620,695.30

Finding the Fourth Proportional to 957,420.40, 1,434,235.20 and 620,695.30

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Solution

The fourth proportional to 957,420.40, 1,434,235.20 and 620,695.30 is: 929,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,420.40 : 1,434,235.20 = 620,695.30 : x
  2. Step 2: Convert to fraction form
    957,420.40/1,434,235.20 = 620,695.30/x
  3. Step 3: Cross multiply
    957,420.40x = 1,434,235.20 × 620,695.30
  4. Step 4: Simplify right side
    957,420.40x = 890,223,047,734.56
  5. Step 5: Solve for x
    x = 890,223,047,734.56/957,420.40
  6. Step 6: Final answer
    x = 929,814.16

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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.