Home / 915,420.29-1,372,942.78-346,605.14

Finding the Fourth Proportional to 915,420.29, 1,372,942.78 and 346,605.14

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Solution

The fourth proportional to 915,420.29, 1,372,942.78 and 346,605.14 is: 519,836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,420.29 : 1,372,942.78 = 346,605.14 : x
  2. Step 2: Convert to fraction form
    915,420.29/1,372,942.78 = 346,605.14/x
  3. Step 3: Cross multiply
    915,420.29x = 1,372,942.78 × 346,605.14
  4. Step 4: Simplify right side
    915,420.29x = 475,869,027,039.73
  5. Step 5: Solve for x
    x = 475,869,027,039.73/915,420.29
  6. Step 6: Final answer
    x = 519,836.66

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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.