Home / 899,687.20-1,349,530.80-831,258.40

Finding the Fourth Proportional to 899,687.20, 1,349,530.80 and 831,258.40

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Solution

The fourth proportional to 899,687.20, 1,349,530.80 and 831,258.40 is: 1,246,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,687.20 : 1,349,530.80 = 831,258.40 : x
  2. Step 2: Convert to fraction form
    899,687.20/1,349,530.80 = 831,258.40/x
  3. Step 3: Cross multiply
    899,687.20x = 1,349,530.80 × 831,258.40
  4. Step 4: Simplify right side
    899,687.20x = 1,121,808,813,558.72
  5. Step 5: Solve for x
    x = 1,121,808,813,558.72/899,687.20
  6. Step 6: Final answer
    x = 1,246,887.60

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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.