Home / 1,507,003.12-2,079,658.20-818,671.60

Finding the Fourth Proportional to 1,507,003.12, 2,079,658.20 and 818,671.60

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Solution

The fourth proportional to 1,507,003.12, 2,079,658.20 and 818,671.60 is: 1,129,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,003.12 : 2,079,658.20 = 818,671.60 : x
  2. Step 2: Convert to fraction form
    1,507,003.12/2,079,658.20 = 818,671.60/x
  3. Step 3: Cross multiply
    1,507,003.12x = 2,079,658.20 × 818,671.60
  4. Step 4: Simplify right side
    1,507,003.12x = 1,702,557,106,047.12
  5. Step 5: Solve for x
    x = 1,702,557,106,047.12/1,507,003.12
  6. Step 6: Final answer
    x = 1,129,763.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.