Home / 531,815.48-733,910.04-290,099.12

Finding the Fourth Proportional to 531,815.48, 733,910.04 and 290,099.12

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Solution

The fourth proportional to 531,815.48, 733,910.04 and 290,099.12 is: 400,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,815.48 : 733,910.04 = 290,099.12 : x
  2. Step 2: Convert to fraction form
    531,815.48/733,910.04 = 290,099.12/x
  3. Step 3: Cross multiply
    531,815.48x = 733,910.04 × 290,099.12
  4. Step 4: Simplify right side
    531,815.48x = 212,906,656,763.17
  5. Step 5: Solve for x
    x = 212,906,656,763.17/531,815.48
  6. Step 6: Final answer
    x = 400,339.34

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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.