Home / 2,578,715.60-3,868,072.68-805,787.60

Finding the Fourth Proportional to 2,578,715.60, 3,868,072.68 and 805,787.60

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Solution

The fourth proportional to 2,578,715.60, 3,868,072.68 and 805,787.60 is: 1,208,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,715.60 : 3,868,072.68 = 805,787.60 : x
  2. Step 2: Convert to fraction form
    2,578,715.60/3,868,072.68 = 805,787.60/x
  3. Step 3: Cross multiply
    2,578,715.60x = 3,868,072.68 × 805,787.60
  4. Step 4: Simplify right side
    2,578,715.60x = 3,116,845,001,442.77
  5. Step 5: Solve for x
    x = 3,116,845,001,442.77/2,578,715.60
  6. Step 6: Final answer
    x = 1,208,681.18

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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.