Home / 918,213.12-1,375,242.24-490,994.40

Finding the Fourth Proportional to 918,213.12, 1,375,242.24 and 490,994.40

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Solution

The fourth proportional to 918,213.12, 1,375,242.24 and 490,994.40 is: 735,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,213.12 : 1,375,242.24 = 490,994.40 : x
  2. Step 2: Convert to fraction form
    918,213.12/1,375,242.24 = 490,994.40/x
  3. Step 3: Cross multiply
    918,213.12x = 1,375,242.24 × 490,994.40
  4. Step 4: Simplify right side
    918,213.12x = 675,236,238,483.46
  5. Step 5: Solve for x
    x = 675,236,238,483.46/918,213.12
  6. Step 6: Final answer
    x = 735,380.73

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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.