Home / 889,795.79-1,334,921.19-258,709.60

Finding the Fourth Proportional to 889,795.79, 1,334,921.19 and 258,709.60

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Solution

The fourth proportional to 889,795.79, 1,334,921.19 and 258,709.60 is: 388,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,795.79 : 1,334,921.19 = 258,709.60 : x
  2. Step 2: Convert to fraction form
    889,795.79/1,334,921.19 = 258,709.60/x
  3. Step 3: Cross multiply
    889,795.79x = 1,334,921.19 × 258,709.60
  4. Step 4: Simplify right side
    889,795.79x = 345,356,927,096.42
  5. Step 5: Solve for x
    x = 345,356,927,096.42/889,795.79
  6. Step 6: Final answer
    x = 388,130.55

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Double scale
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Similar ratio
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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.