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Finding the Fourth Proportional to 874,978.27, 1,312,937.95 and 843,130.44

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Solution

The fourth proportional to 874,978.27, 1,312,937.95 and 843,130.44 is: 1,265,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,978.27 : 1,312,937.95 = 843,130.44 : x
  2. Step 2: Convert to fraction form
    874,978.27/1,312,937.95 = 843,130.44/x
  3. Step 3: Cross multiply
    874,978.27x = 1,312,937.95 × 843,130.44
  4. Step 4: Simplify right side
    874,978.27x = 1,106,977,951,476.20
  5. Step 5: Solve for x
    x = 1,106,977,951,476.20/874,978.27
  6. Step 6: Final answer
    x = 1,265,149.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.