Home / 1,109,510.80-1,664,266.20-631,213.90

Finding the Fourth Proportional to 1,109,510.80, 1,664,266.20 and 631,213.90

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Solution

The fourth proportional to 1,109,510.80, 1,664,266.20 and 631,213.90 is: 946,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,510.80 : 1,664,266.20 = 631,213.90 : x
  2. Step 2: Convert to fraction form
    1,109,510.80/1,664,266.20 = 631,213.90/x
  3. Step 3: Cross multiply
    1,109,510.80x = 1,664,266.20 × 631,213.90
  4. Step 4: Simplify right side
    1,109,510.80x = 1,050,507,958,740.18
  5. Step 5: Solve for x
    x = 1,050,507,958,740.18/1,109,510.80
  6. Step 6: Final answer
    x = 946,820.85

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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.