Home / 726,818-1,090,141.12-194,380.28

Finding the Fourth Proportional to 726,818, 1,090,141.12 and 194,380.28

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Solution

The fourth proportional to 726,818, 1,090,141.12 and 194,380.28 is: 291,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,818 : 1,090,141.12 = 194,380.28 : x
  2. Step 2: Convert to fraction form
    726,818/1,090,141.12 = 194,380.28/x
  3. Step 3: Cross multiply
    726,818x = 1,090,141.12 × 194,380.28
  4. Step 4: Simplify right side
    726,818x = 211,901,936,145.11
  5. Step 5: Solve for x
    x = 211,901,936,145.11/726,818
  6. Step 6: Final answer
    x = 291,547.45

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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.