Home / 2,109,678.85-2,911,370.75-1,142,809.12

Finding the Fourth Proportional to 2,109,678.85, 2,911,370.75 and 1,142,809.12

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Solution

The fourth proportional to 2,109,678.85, 2,911,370.75 and 1,142,809.12 is: 1,577,084.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,678.85 : 2,911,370.75 = 1,142,809.12 : x
  2. Step 2: Convert to fraction form
    2,109,678.85/2,911,370.75 = 1,142,809.12/x
  3. Step 3: Cross multiply
    2,109,678.85x = 2,911,370.75 × 1,142,809.12
  4. Step 4: Simplify right side
    2,109,678.85x = 3,327,141,044,801.24
  5. Step 5: Solve for x
    x = 3,327,141,044,801.24/2,109,678.85
  6. Step 6: Final answer
    x = 1,577,084.14

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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.