Home / 809,126.20-1,116,327.90-522,814.96

Finding the Fourth Proportional to 809,126.20, 1,116,327.90 and 522,814.96

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Solution

The fourth proportional to 809,126.20, 1,116,327.90 and 522,814.96 is: 721,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,126.20 : 1,116,327.90 = 522,814.96 : x
  2. Step 2: Convert to fraction form
    809,126.20/1,116,327.90 = 522,814.96/x
  3. Step 3: Cross multiply
    809,126.20x = 1,116,327.90 × 522,814.96
  4. Step 4: Simplify right side
    809,126.20x = 583,632,926,385.38
  5. Step 5: Solve for x
    x = 583,632,926,385.38/809,126.20
  6. Step 6: Final answer
    x = 721,312.60

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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.