Home / 806,287.79-1,112,677.31-443,711.65

Finding the Fourth Proportional to 806,287.79, 1,112,677.31 and 443,711.65

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Solution

The fourth proportional to 806,287.79, 1,112,677.31 and 443,711.65 is: 612,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,287.79 : 1,112,677.31 = 443,711.65 : x
  2. Step 2: Convert to fraction form
    806,287.79/1,112,677.31 = 443,711.65/x
  3. Step 3: Cross multiply
    806,287.79x = 1,112,677.31 × 443,711.65
  4. Step 4: Simplify right side
    806,287.79x = 493,707,883,465.25
  5. Step 5: Solve for x
    x = 493,707,883,465.25/806,287.79
  6. Step 6: Final answer
    x = 612,322.16

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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.