Home / 690,771.98-1,036,268.77-291,471.57

Finding the Fourth Proportional to 690,771.98, 1,036,268.77 and 291,471.57

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Solution

The fourth proportional to 690,771.98, 1,036,268.77 and 291,471.57 is: 437,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,771.98 : 1,036,268.77 = 291,471.57 : x
  2. Step 2: Convert to fraction form
    690,771.98/1,036,268.77 = 291,471.57/x
  3. Step 3: Cross multiply
    690,771.98x = 1,036,268.77 × 291,471.57
  4. Step 4: Simplify right side
    690,771.98x = 302,042,886,905.02
  5. Step 5: Solve for x
    x = 302,042,886,905.02/690,771.98
  6. Step 6: Final answer
    x = 437,254.11

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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.