Home / 1,587,653.92-2,191,004.40-908,809.12

Finding the Fourth Proportional to 1,587,653.92, 2,191,004.40 and 908,809.12

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Solution

The fourth proportional to 1,587,653.92, 2,191,004.40 and 908,809.12 is: 1,254,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,653.92 : 2,191,004.40 = 908,809.12 : x
  2. Step 2: Convert to fraction form
    1,587,653.92/2,191,004.40 = 908,809.12/x
  3. Step 3: Cross multiply
    1,587,653.92x = 2,191,004.40 × 908,809.12
  4. Step 4: Simplify right side
    1,587,653.92x = 1,991,204,780,680.13
  5. Step 5: Solve for x
    x = 1,991,204,780,680.13/1,587,653.92
  6. Step 6: Final answer
    x = 1,254,180.62

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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.