Home / 679,322.80-1,019,081.40-206,045.20

Finding the Fourth Proportional to 679,322.80, 1,019,081.40 and 206,045.20

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Solution

The fourth proportional to 679,322.80, 1,019,081.40 and 206,045.20 is: 309,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,322.80 : 1,019,081.40 = 206,045.20 : x
  2. Step 2: Convert to fraction form
    679,322.80/1,019,081.40 = 206,045.20/x
  3. Step 3: Cross multiply
    679,322.80x = 1,019,081.40 × 206,045.20
  4. Step 4: Simplify right side
    679,322.80x = 209,976,830,879.28
  5. Step 5: Solve for x
    x = 209,976,830,879.28/679,322.80
  6. Step 6: Final answer
    x = 309,097.28

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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.