Home / 1,339,311.18-1,848,264.40-788,148.74

Finding the Fourth Proportional to 1,339,311.18, 1,848,264.40 and 788,148.74

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Solution

The fourth proportional to 1,339,311.18, 1,848,264.40 and 788,148.74 is: 1,087,654.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,311.18 : 1,848,264.40 = 788,148.74 : x
  2. Step 2: Convert to fraction form
    1,339,311.18/1,848,264.40 = 788,148.74/x
  3. Step 3: Cross multiply
    1,339,311.18x = 1,848,264.40 × 788,148.74
  4. Step 4: Simplify right side
    1,339,311.18x = 1,456,707,268,468.49
  5. Step 5: Solve for x
    x = 1,456,707,268,468.49/1,339,311.18
  6. Step 6: Final answer
    x = 1,087,654.08

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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.