Home / 851,276.05-1,174,769.12-469,316.50

Finding the Fourth Proportional to 851,276.05, 1,174,769.12 and 469,316.50

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Solution

The fourth proportional to 851,276.05, 1,174,769.12 and 469,316.50 is: 647,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,276.05 : 1,174,769.12 = 469,316.50 : x
  2. Step 2: Convert to fraction form
    851,276.05/1,174,769.12 = 469,316.50/x
  3. Step 3: Cross multiply
    851,276.05x = 1,174,769.12 × 469,316.50
  4. Step 4: Simplify right side
    851,276.05x = 551,338,529,942.85
  5. Step 5: Solve for x
    x = 551,338,529,942.85/851,276.05
  6. Step 6: Final answer
    x = 647,661.27

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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.