Home / 354,929.40-532,394.10-331,428.60

Finding the Fourth Proportional to 354,929.40, 532,394.10 and 331,428.60

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Solution

The fourth proportional to 354,929.40, 532,394.10 and 331,428.60 is: 497,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,929.40 : 532,394.10 = 331,428.60 : x
  2. Step 2: Convert to fraction form
    354,929.40/532,394.10 = 331,428.60/x
  3. Step 3: Cross multiply
    354,929.40x = 532,394.10 × 331,428.60
  4. Step 4: Simplify right side
    354,929.40x = 176,450,631,211.26
  5. Step 5: Solve for x
    x = 176,450,631,211.26/354,929.40
  6. Step 6: Final answer
    x = 497,142.90

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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.