Home / 889,904.21-1,227,993.78-522,341.60

Finding the Fourth Proportional to 889,904.21, 1,227,993.78 and 522,341.60

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Solution

The fourth proportional to 889,904.21, 1,227,993.78 and 522,341.60 is: 720,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,904.21 : 1,227,993.78 = 522,341.60 : x
  2. Step 2: Convert to fraction form
    889,904.21/1,227,993.78 = 522,341.60/x
  3. Step 3: Cross multiply
    889,904.21x = 1,227,993.78 × 522,341.60
  4. Step 4: Simplify right side
    889,904.21x = 641,432,229,695.28
  5. Step 5: Solve for x
    x = 641,432,229,695.28/889,904.21
  6. Step 6: Final answer
    x = 720,787.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.