Home / 1,369,877.19-1,890,960.49-1,226,388.12

Finding the Fourth Proportional to 1,369,877.19, 1,890,960.49 and 1,226,388.12

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Solution

The fourth proportional to 1,369,877.19, 1,890,960.49 and 1,226,388.12 is: 1,692,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,877.19 : 1,890,960.49 = 1,226,388.12 : x
  2. Step 2: Convert to fraction form
    1,369,877.19/1,890,960.49 = 1,226,388.12/x
  3. Step 3: Cross multiply
    1,369,877.19x = 1,890,960.49 × 1,226,388.12
  4. Step 4: Simplify right side
    1,369,877.19x = 2,319,051,480,325.38
  5. Step 5: Solve for x
    x = 2,319,051,480,325.38/1,369,877.19
  6. Step 6: Final answer
    x = 1,692,890.06

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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.