Home / 666,055.98-919,138.59-364,243.50

Finding the Fourth Proportional to 666,055.98, 919,138.59 and 364,243.50

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Solution

The fourth proportional to 666,055.98, 919,138.59 and 364,243.50 is: 502,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,055.98 : 919,138.59 = 364,243.50 : x
  2. Step 2: Convert to fraction form
    666,055.98/919,138.59 = 364,243.50/x
  3. Step 3: Cross multiply
    666,055.98x = 919,138.59 × 364,243.50
  4. Step 4: Simplify right side
    666,055.98x = 334,790,257,006.67
  5. Step 5: Solve for x
    x = 334,790,257,006.67/666,055.98
  6. Step 6: Final answer
    x = 502,645.82

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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.