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Finding the Fourth Proportional to 371,838.40, 514,132.32 and 324,599.20

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Solution

The fourth proportional to 371,838.40, 514,132.32 and 324,599.20 is: 448,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,838.40 : 514,132.32 = 324,599.20 : x
  2. Step 2: Convert to fraction form
    371,838.40/514,132.32 = 324,599.20/x
  3. Step 3: Cross multiply
    371,838.40x = 514,132.32 × 324,599.20
  4. Step 4: Simplify right side
    371,838.40x = 166,886,939,766.14
  5. Step 5: Solve for x
    x = 166,886,939,766.14/371,838.40
  6. Step 6: Final answer
    x = 448,815.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.