Home / 915,188.87-1,371,815.42-338,441.55

Finding the Fourth Proportional to 915,188.87, 1,371,815.42 and 338,441.55

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Solution

The fourth proportional to 915,188.87, 1,371,815.42 and 338,441.55 is: 507,304.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,188.87 : 1,371,815.42 = 338,441.55 : x
  2. Step 2: Convert to fraction form
    915,188.87/1,371,815.42 = 338,441.55/x
  3. Step 3: Cross multiply
    915,188.87x = 1,371,815.42 × 338,441.55
  4. Step 4: Simplify right side
    915,188.87x = 464,279,330,222.19
  5. Step 5: Solve for x
    x = 464,279,330,222.19/915,188.87
  6. Step 6: Final answer
    x = 507,304.39

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1.5x scale

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.