Home / 1,009,372.80-1,516,165.20-851,908.80

Finding the Fourth Proportional to 1,009,372.80, 1,516,165.20 and 851,908.80

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Solution

The fourth proportional to 1,009,372.80, 1,516,165.20 and 851,908.80 is: 1,279,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,372.80 : 1,516,165.20 = 851,908.80 : x
  2. Step 2: Convert to fraction form
    1,009,372.80/1,516,165.20 = 851,908.80/x
  3. Step 3: Cross multiply
    1,009,372.80x = 1,516,165.20 × 851,908.80
  4. Step 4: Simplify right side
    1,009,372.80x = 1,291,634,476,133.76
  5. Step 5: Solve for x
    x = 1,291,634,476,133.76/1,009,372.80
  6. Step 6: Final answer
    x = 1,279,640.66

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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.