Home / 790,927.51-1,091,473.80-428,342.98

Finding the Fourth Proportional to 790,927.51, 1,091,473.80 and 428,342.98

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Solution

The fourth proportional to 790,927.51, 1,091,473.80 and 428,342.98 is: 591,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,927.51 : 1,091,473.80 = 428,342.98 : x
  2. Step 2: Convert to fraction form
    790,927.51/1,091,473.80 = 428,342.98/x
  3. Step 3: Cross multiply
    790,927.51x = 1,091,473.80 × 428,342.98
  4. Step 4: Simplify right side
    790,927.51x = 467,525,140,083.92
  5. Step 5: Solve for x
    x = 467,525,140,083.92/790,927.51
  6. Step 6: Final answer
    x = 591,109.97

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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.