Home / 889,902.32-1,334,839.37-215,989.20

Finding the Fourth Proportional to 889,902.32, 1,334,839.37 and 215,989.20

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Solution

The fourth proportional to 889,902.32, 1,334,839.37 and 215,989.20 is: 323,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,902.32 : 1,334,839.37 = 215,989.20 : x
  2. Step 2: Convert to fraction form
    889,902.32/1,334,839.37 = 215,989.20/x
  3. Step 3: Cross multiply
    889,902.32x = 1,334,839.37 × 215,989.20
  4. Step 4: Simplify right side
    889,902.32x = 288,310,886,574.86
  5. Step 5: Solve for x
    x = 288,310,886,574.86/889,902.32
  6. Step 6: Final answer
    x = 323,980.38

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Double scale
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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.