Home / 1,278,369.60-1,917,554.40-1,257,374.40

Finding the Fourth Proportional to 1,278,369.60, 1,917,554.40 and 1,257,374.40

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Solution

The fourth proportional to 1,278,369.60, 1,917,554.40 and 1,257,374.40 is: 1,886,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,369.60 : 1,917,554.40 = 1,257,374.40 : x
  2. Step 2: Convert to fraction form
    1,278,369.60/1,917,554.40 = 1,257,374.40/x
  3. Step 3: Cross multiply
    1,278,369.60x = 1,917,554.40 × 1,257,374.40
  4. Step 4: Simplify right side
    1,278,369.60x = 2,411,083,813,167.36
  5. Step 5: Solve for x
    x = 2,411,083,813,167.36/1,278,369.60
  6. Step 6: Final answer
    x = 1,886,061.60

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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.