Home / 915,854.07-1,372,811.51-308,063.78

Finding the Fourth Proportional to 915,854.07, 1,372,811.51 and 308,063.78

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Solution

The fourth proportional to 915,854.07, 1,372,811.51 and 308,063.78 is: 461,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,854.07 : 1,372,811.51 = 308,063.78 : x
  2. Step 2: Convert to fraction form
    915,854.07/1,372,811.51 = 308,063.78/x
  3. Step 3: Cross multiply
    915,854.07x = 1,372,811.51 × 308,063.78
  4. Step 4: Simplify right side
    915,854.07x = 422,913,501,457.79
  5. Step 5: Solve for x
    x = 422,913,501,457.79/915,854.07
  6. Step 6: Final answer
    x = 461,769.53

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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.