Home / 1,191,707.74-1,643,013.08-771,856.56

Finding the Fourth Proportional to 1,191,707.74, 1,643,013.08 and 771,856.56

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Solution

The fourth proportional to 1,191,707.74, 1,643,013.08 and 771,856.56 is: 1,064,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,707.74 : 1,643,013.08 = 771,856.56 : x
  2. Step 2: Convert to fraction form
    1,191,707.74/1,643,013.08 = 771,856.56/x
  3. Step 3: Cross multiply
    1,191,707.74x = 1,643,013.08 × 771,856.56
  4. Step 4: Simplify right side
    1,191,707.74x = 1,268,170,420,104.52
  5. Step 5: Solve for x
    x = 1,268,170,420,104.52/1,191,707.74
  6. Step 6: Final answer
    x = 1,064,162.28

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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.