Home / 931,505.60-1,397,258.40-831,778.40

Finding the Fourth Proportional to 931,505.60, 1,397,258.40 and 831,778.40

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Solution

The fourth proportional to 931,505.60, 1,397,258.40 and 831,778.40 is: 1,247,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,505.60 : 1,397,258.40 = 831,778.40 : x
  2. Step 2: Convert to fraction form
    931,505.60/1,397,258.40 = 831,778.40/x
  3. Step 3: Cross multiply
    931,505.60x = 1,397,258.40 × 831,778.40
  4. Step 4: Simplify right side
    931,505.60x = 1,162,209,356,338.56
  5. Step 5: Solve for x
    x = 1,162,209,356,338.56/931,505.60
  6. Step 6: Final answer
    x = 1,247,667.60

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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.