Home / 1,290,887.80-1,936,861.50-570,849.64

Finding the Fourth Proportional to 1,290,887.80, 1,936,861.50 and 570,849.64

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Solution

The fourth proportional to 1,290,887.80, 1,936,861.50 and 570,849.64 is: 856,508.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,887.80 : 1,936,861.50 = 570,849.64 : x
  2. Step 2: Convert to fraction form
    1,290,887.80/1,936,861.50 = 570,849.64/x
  3. Step 3: Cross multiply
    1,290,887.80x = 1,936,861.50 × 570,849.64
  4. Step 4: Simplify right side
    1,290,887.80x = 1,105,656,690,004.86
  5. Step 5: Solve for x
    x = 1,105,656,690,004.86/1,290,887.80
  6. Step 6: Final answer
    x = 856,508.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.