Home / 991,361.03-1,487,073.87-471,923.55

Finding the Fourth Proportional to 991,361.03, 1,487,073.87 and 471,923.55

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Solution

The fourth proportional to 991,361.03, 1,487,073.87 and 471,923.55 is: 707,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,361.03 : 1,487,073.87 = 471,923.55 : x
  2. Step 2: Convert to fraction form
    991,361.03/1,487,073.87 = 471,923.55/x
  3. Step 3: Cross multiply
    991,361.03x = 1,487,073.87 × 471,923.55
  4. Step 4: Simplify right side
    991,361.03x = 701,785,179,842.64
  5. Step 5: Solve for x
    x = 701,785,179,842.64/991,361.03
  6. Step 6: Final answer
    x = 707,900.72

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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.