Home / 699,200.04-964,924.86-393,290.70

Finding the Fourth Proportional to 699,200.04, 964,924.86 and 393,290.70

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Solution

The fourth proportional to 699,200.04, 964,924.86 and 393,290.70 is: 542,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,200.04 : 964,924.86 = 393,290.70 : x
  2. Step 2: Convert to fraction form
    699,200.04/964,924.86 = 393,290.70/x
  3. Step 3: Cross multiply
    699,200.04x = 964,924.86 × 393,290.70
  4. Step 4: Simplify right side
    699,200.04x = 379,495,973,636.80
  5. Step 5: Solve for x
    x = 379,495,973,636.80/699,200.04
  6. Step 6: Final answer
    x = 542,757.37

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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.