Home / 831,374.24-1,245,792.89-432,144.68

Finding the Fourth Proportional to 831,374.24, 1,245,792.89 and 432,144.68

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Solution

The fourth proportional to 831,374.24, 1,245,792.89 and 432,144.68 is: 647,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,374.24 : 1,245,792.89 = 432,144.68 : x
  2. Step 2: Convert to fraction form
    831,374.24/1,245,792.89 = 432,144.68/x
  3. Step 3: Cross multiply
    831,374.24x = 1,245,792.89 × 432,144.68
  4. Step 4: Simplify right side
    831,374.24x = 538,362,761,405.64
  5. Step 5: Solve for x
    x = 538,362,761,405.64/831,374.24
  6. Step 6: Final answer
    x = 647,557.67

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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.