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Finding the Fourth Proportional to 906,300.32, 1,359,362.32 and 275,219.60

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Solution

The fourth proportional to 906,300.32, 1,359,362.32 and 275,219.60 is: 412,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,300.32 : 1,359,362.32 = 275,219.60 : x
  2. Step 2: Convert to fraction form
    906,300.32/1,359,362.32 = 275,219.60/x
  3. Step 3: Cross multiply
    906,300.32x = 1,359,362.32 × 275,219.60
  4. Step 4: Simplify right side
    906,300.32x = 374,123,153,965.47
  5. Step 5: Solve for x
    x = 374,123,153,965.47/906,300.32
  6. Step 6: Final answer
    x = 412,802.63

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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.