Home / 915,783.41-1,263,856.76-508,016.72

Finding the Fourth Proportional to 915,783.41, 1,263,856.76 and 508,016.72

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Solution

The fourth proportional to 915,783.41, 1,263,856.76 and 508,016.72 is: 701,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,783.41 : 1,263,856.76 = 508,016.72 : x
  2. Step 2: Convert to fraction form
    915,783.41/1,263,856.76 = 508,016.72/x
  3. Step 3: Cross multiply
    915,783.41x = 1,263,856.76 × 508,016.72
  4. Step 4: Simplify right side
    915,783.41x = 642,060,356,905.66
  5. Step 5: Solve for x
    x = 642,060,356,905.66/915,783.41
  6. Step 6: Final answer
    x = 701,105.04

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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.