Home / 762,455.58-1,052,172.63-422,920.86

Finding the Fourth Proportional to 762,455.58, 1,052,172.63 and 422,920.86

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Solution

The fourth proportional to 762,455.58, 1,052,172.63 and 422,920.86 is: 583,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,455.58 : 1,052,172.63 = 422,920.86 : x
  2. Step 2: Convert to fraction form
    762,455.58/1,052,172.63 = 422,920.86/x
  3. Step 3: Cross multiply
    762,455.58x = 1,052,172.63 × 422,920.86
  4. Step 4: Simplify right side
    762,455.58x = 444,985,753,548.06
  5. Step 5: Solve for x
    x = 444,985,753,548.06/762,455.58
  6. Step 6: Final answer
    x = 583,621.87

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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.