Home / 851,942.78-1,175,674.47-469,985.66

Finding the Fourth Proportional to 851,942.78, 1,175,674.47 and 469,985.66

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Solution

The fourth proportional to 851,942.78, 1,175,674.47 and 469,985.66 is: 648,576.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,942.78 : 1,175,674.47 = 469,985.66 : x
  2. Step 2: Convert to fraction form
    851,942.78/1,175,674.47 = 469,985.66/x
  3. Step 3: Cross multiply
    851,942.78x = 1,175,674.47 × 469,985.66
  4. Step 4: Simplify right side
    851,942.78x = 552,550,141,728.10
  5. Step 5: Solve for x
    x = 552,550,141,728.10/851,942.78
  6. Step 6: Final answer
    x = 648,576.59

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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.