Home / 915,781.93-1,263,856.70-508,015.13

Finding the Fourth Proportional to 915,781.93, 1,263,856.70 and 508,015.13

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Solution

The fourth proportional to 915,781.93, 1,263,856.70 and 508,015.13 is: 701,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,781.93 : 1,263,856.70 = 508,015.13 : x
  2. Step 2: Convert to fraction form
    915,781.93/1,263,856.70 = 508,015.13/x
  3. Step 3: Cross multiply
    915,781.93x = 1,263,856.70 × 508,015.13
  4. Step 4: Simplify right side
    915,781.93x = 642,058,325,751.87
  5. Step 5: Solve for x
    x = 642,058,325,751.87/915,781.93
  6. Step 6: Final answer
    x = 701,103.95

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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.