Home / 842,557.61-1,263,711.81-309,954.07

Finding the Fourth Proportional to 842,557.61, 1,263,711.81 and 309,954.07

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Solution

The fourth proportional to 842,557.61, 1,263,711.81 and 309,954.07 is: 464,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,557.61 : 1,263,711.81 = 309,954.07 : x
  2. Step 2: Convert to fraction form
    842,557.61/1,263,711.81 = 309,954.07/x
  3. Step 3: Cross multiply
    842,557.61x = 1,263,711.81 × 309,954.07
  4. Step 4: Simplify right side
    842,557.61x = 391,692,621,558.53
  5. Step 5: Solve for x
    x = 391,692,621,558.53/842,557.61
  6. Step 6: Final answer
    x = 464,885.27

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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.