Home / 918,028.16-1,376,512.50-356,406.56

Finding the Fourth Proportional to 918,028.16, 1,376,512.50 and 356,406.56

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Solution

The fourth proportional to 918,028.16, 1,376,512.50 and 356,406.56 is: 534,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,028.16 : 1,376,512.50 = 356,406.56 : x
  2. Step 2: Convert to fraction form
    918,028.16/1,376,512.50 = 356,406.56/x
  3. Step 3: Cross multiply
    918,028.16x = 1,376,512.50 × 356,406.56
  4. Step 4: Simplify right side
    918,028.16x = 490,598,084,922
  5. Step 5: Solve for x
    x = 490,598,084,922/918,028.16
  6. Step 6: Final answer
    x = 534,404.18

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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.