Home / 915,856.07-1,372,814.50-308,065.78

Finding the Fourth Proportional to 915,856.07, 1,372,814.50 and 308,065.78

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Solution

The fourth proportional to 915,856.07, 1,372,814.50 and 308,065.78 is: 461,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,856.07 : 1,372,814.50 = 308,065.78 : x
  2. Step 2: Convert to fraction form
    915,856.07/1,372,814.50 = 308,065.78/x
  3. Step 3: Cross multiply
    915,856.07x = 1,372,814.50 × 308,065.78
  4. Step 4: Simplify right side
    915,856.07x = 422,917,169,737.81
  5. Step 5: Solve for x
    x = 422,917,169,737.81/915,856.07
  6. Step 6: Final answer
    x = 461,772.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.