Home / 913,720.45-1,260,949.11-500,250.28

Finding the Fourth Proportional to 913,720.45, 1,260,949.11 and 500,250.28

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Solution

The fourth proportional to 913,720.45, 1,260,949.11 and 500,250.28 is: 690,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,720.45 : 1,260,949.11 = 500,250.28 : x
  2. Step 2: Convert to fraction form
    913,720.45/1,260,949.11 = 500,250.28/x
  3. Step 3: Cross multiply
    913,720.45x = 1,260,949.11 × 500,250.28
  4. Step 4: Simplify right side
    913,720.45x = 630,790,145,343.25
  5. Step 5: Solve for x
    x = 630,790,145,343.25/913,720.45
  6. Step 6: Final answer
    x = 690,353.54

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1.5x scale

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.