Home / 1,247,894.40-1,868,342.40-1,212,902.40

Finding the Fourth Proportional to 1,247,894.40, 1,868,342.40 and 1,212,902.40

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Solution

The fourth proportional to 1,247,894.40, 1,868,342.40 and 1,212,902.40 is: 1,815,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,894.40 : 1,868,342.40 = 1,212,902.40 : x
  2. Step 2: Convert to fraction form
    1,247,894.40/1,868,342.40 = 1,212,902.40/x
  3. Step 3: Cross multiply
    1,247,894.40x = 1,868,342.40 × 1,212,902.40
  4. Step 4: Simplify right side
    1,247,894.40x = 2,266,116,980,981.76
  5. Step 5: Solve for x
    x = 2,266,116,980,981.76/1,247,894.40
  6. Step 6: Final answer
    x = 1,815,952.52

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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.