Home / 790,657.05-1,091,093.43-428,077.98

Finding the Fourth Proportional to 790,657.05, 1,091,093.43 and 428,077.98

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Solution

The fourth proportional to 790,657.05, 1,091,093.43 and 428,077.98 is: 590,740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,657.05 : 1,091,093.43 = 428,077.98 : x
  2. Step 2: Convert to fraction form
    790,657.05/1,091,093.43 = 428,077.98/x
  3. Step 3: Cross multiply
    790,657.05x = 1,091,093.43 × 428,077.98
  4. Step 4: Simplify right side
    790,657.05x = 467,073,071,505.67
  5. Step 5: Solve for x
    x = 467,073,071,505.67/790,657.05
  6. Step 6: Final answer
    x = 590,740.41

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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.