Home / 831,901.91-1,148,025.40-449,928.69

Finding the Fourth Proportional to 831,901.91, 1,148,025.40 and 449,928.69

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Solution

The fourth proportional to 831,901.91, 1,148,025.40 and 449,928.69 is: 620,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,901.91 : 1,148,025.40 = 449,928.69 : x
  2. Step 2: Convert to fraction form
    831,901.91/1,148,025.40 = 449,928.69/x
  3. Step 3: Cross multiply
    831,901.91x = 1,148,025.40 × 449,928.69
  4. Step 4: Simplify right side
    831,901.91x = 516,529,564,308.73
  5. Step 5: Solve for x
    x = 516,529,564,308.73/831,901.91
  6. Step 6: Final answer
    x = 620,902.01

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Double scale
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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.