Home / 889,654.40-1,334,611.20-290,643.20

Finding the Fourth Proportional to 889,654.40, 1,334,611.20 and 290,643.20

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Solution

The fourth proportional to 889,654.40, 1,334,611.20 and 290,643.20 is: 436,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,654.40 : 1,334,611.20 = 290,643.20 : x
  2. Step 2: Convert to fraction form
    889,654.40/1,334,611.20 = 290,643.20/x
  3. Step 3: Cross multiply
    889,654.40x = 1,334,611.20 × 290,643.20
  4. Step 4: Simplify right side
    889,654.40x = 387,895,669,923.84
  5. Step 5: Solve for x
    x = 387,895,669,923.84/889,654.40
  6. Step 6: Final answer
    x = 436,007.14

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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.