Home / 432,916.18-649,374.27-262,172.31

Finding the Fourth Proportional to 432,916.18, 649,374.27 and 262,172.31

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Solution

The fourth proportional to 432,916.18, 649,374.27 and 262,172.31 is: 393,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,916.18 : 649,374.27 = 262,172.31 : x
  2. Step 2: Convert to fraction form
    432,916.18/649,374.27 = 262,172.31/x
  3. Step 3: Cross multiply
    432,916.18x = 649,374.27 × 262,172.31
  4. Step 4: Simplify right side
    432,916.18x = 170,247,952,420.46
  5. Step 5: Solve for x
    x = 170,247,952,420.46/432,916.18
  6. Step 6: Final answer
    x = 393,258.47

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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.