Home / 1,208,019.99-1,665,697.95-771,861.12

Finding the Fourth Proportional to 1,208,019.99, 1,665,697.95 and 771,861.12

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Solution

The fourth proportional to 1,208,019.99, 1,665,697.95 and 771,861.12 is: 1,064,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,019.99 : 1,665,697.95 = 771,861.12 : x
  2. Step 2: Convert to fraction form
    1,208,019.99/1,665,697.95 = 771,861.12/x
  3. Step 3: Cross multiply
    1,208,019.99x = 1,665,697.95 × 771,861.12
  4. Step 4: Simplify right side
    1,208,019.99x = 1,285,687,485,268.70
  5. Step 5: Solve for x
    x = 1,285,687,485,268.70/1,208,019.99
  6. Step 6: Final answer
    x = 1,064,293.22

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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.