Home / 918,212.82-1,377,267.39-287,052.18

Finding the Fourth Proportional to 918,212.82, 1,377,267.39 and 287,052.18

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Solution

The fourth proportional to 918,212.82, 1,377,267.39 and 287,052.18 is: 430,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,212.82 : 1,377,267.39 = 287,052.18 : x
  2. Step 2: Convert to fraction form
    918,212.82/1,377,267.39 = 287,052.18/x
  3. Step 3: Cross multiply
    918,212.82x = 1,377,267.39 × 287,052.18
  4. Step 4: Simplify right side
    918,212.82x = 395,347,606,742.41
  5. Step 5: Solve for x
    x = 395,347,606,742.41/918,212.82
  6. Step 6: Final answer
    x = 430,562.06

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1.5x scale

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.