Home / 862,587.45-1,190,375.55-500,226.46

Finding the Fourth Proportional to 862,587.45, 1,190,375.55 and 500,226.46

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Solution

The fourth proportional to 862,587.45, 1,190,375.55 and 500,226.46 is: 690,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,587.45 : 1,190,375.55 = 500,226.46 : x
  2. Step 2: Convert to fraction form
    862,587.45/1,190,375.55 = 500,226.46/x
  3. Step 3: Cross multiply
    862,587.45x = 1,190,375.55 × 500,226.46
  4. Step 4: Simplify right side
    862,587.45x = 595,457,343,371.02
  5. Step 5: Solve for x
    x = 595,457,343,371.02/862,587.45
  6. Step 6: Final answer
    x = 690,315.34

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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.