Home / 1,319,231.21-1,820,627.08-738,505.86

Finding the Fourth Proportional to 1,319,231.21, 1,820,627.08 and 738,505.86

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Solution

The fourth proportional to 1,319,231.21, 1,820,627.08 and 738,505.86 is: 1,019,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,231.21 : 1,820,627.08 = 738,505.86 : x
  2. Step 2: Convert to fraction form
    1,319,231.21/1,820,627.08 = 738,505.86/x
  3. Step 3: Cross multiply
    1,319,231.21x = 1,820,627.08 × 738,505.86
  4. Step 4: Simplify right side
    1,319,231.21x = 1,344,543,758,781.07
  5. Step 5: Solve for x
    x = 1,344,543,758,781.07/1,319,231.21
  6. Step 6: Final answer
    x = 1,019,187.35

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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.