Home / 771,713.29-1,157,570.39-322,189.11

Finding the Fourth Proportional to 771,713.29, 1,157,570.39 and 322,189.11

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Solution

The fourth proportional to 771,713.29, 1,157,570.39 and 322,189.11 is: 483,283.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,713.29 : 1,157,570.39 = 322,189.11 : x
  2. Step 2: Convert to fraction form
    771,713.29/1,157,570.39 = 322,189.11/x
  3. Step 3: Cross multiply
    771,713.29x = 1,157,570.39 × 322,189.11
  4. Step 4: Simplify right side
    771,713.29x = 372,956,574,521.93
  5. Step 5: Solve for x
    x = 372,956,574,521.93/771,713.29
  6. Step 6: Final answer
    x = 483,283.86

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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.