Home / 855,729.15-1,283,623.49-406,218.43

Finding the Fourth Proportional to 855,729.15, 1,283,623.49 and 406,218.43

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Solution

The fourth proportional to 855,729.15, 1,283,623.49 and 406,218.43 is: 609,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,729.15 : 1,283,623.49 = 406,218.43 : x
  2. Step 2: Convert to fraction form
    855,729.15/1,283,623.49 = 406,218.43/x
  3. Step 3: Cross multiply
    855,729.15x = 1,283,623.49 × 406,218.43
  4. Step 4: Simplify right side
    855,729.15x = 521,431,518,818.92
  5. Step 5: Solve for x
    x = 521,431,518,818.92/855,729.15
  6. Step 6: Final answer
    x = 609,341.77

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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.