Home / 851,251.10-1,276,903.37-318,670.43

Finding the Fourth Proportional to 851,251.10, 1,276,903.37 and 318,670.43

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Solution

The fourth proportional to 851,251.10, 1,276,903.37 and 318,670.43 is: 478,015.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,251.10 : 1,276,903.37 = 318,670.43 : x
  2. Step 2: Convert to fraction form
    851,251.10/1,276,903.37 = 318,670.43/x
  3. Step 3: Cross multiply
    851,251.10x = 1,276,903.37 × 318,670.43
  4. Step 4: Simplify right side
    851,251.10x = 406,911,340,398.51
  5. Step 5: Solve for x
    x = 406,911,340,398.51/851,251.10
  6. Step 6: Final answer
    x = 478,015.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.