Home / 807,653.20-1,211,042.40-334,386.40

Finding the Fourth Proportional to 807,653.20, 1,211,042.40 and 334,386.40

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Solution

The fourth proportional to 807,653.20, 1,211,042.40 and 334,386.40 is: 501,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,653.20 : 1,211,042.40 = 334,386.40 : x
  2. Step 2: Convert to fraction form
    807,653.20/1,211,042.40 = 334,386.40/x
  3. Step 3: Cross multiply
    807,653.20x = 1,211,042.40 × 334,386.40
  4. Step 4: Simplify right side
    807,653.20x = 404,956,108,383.36
  5. Step 5: Solve for x
    x = 404,956,108,383.36/807,653.20
  6. Step 6: Final answer
    x = 501,398.51

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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.