Home / 831,139.62-1,246,780.14-262,368.55

Finding the Fourth Proportional to 831,139.62, 1,246,780.14 and 262,368.55

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Solution

The fourth proportional to 831,139.62, 1,246,780.14 and 262,368.55 is: 393,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,139.62 : 1,246,780.14 = 262,368.55 : x
  2. Step 2: Convert to fraction form
    831,139.62/1,246,780.14 = 262,368.55/x
  3. Step 3: Cross multiply
    831,139.62x = 1,246,780.14 × 262,368.55
  4. Step 4: Simplify right side
    831,139.62x = 327,115,897,500.60
  5. Step 5: Solve for x
    x = 327,115,897,500.60/831,139.62
  6. Step 6: Final answer
    x = 393,575.15

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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.