Home / 1,237,861.87-1,708,253.73-779,279.86

Finding the Fourth Proportional to 1,237,861.87, 1,708,253.73 and 779,279.86

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Solution

The fourth proportional to 1,237,861.87, 1,708,253.73 and 779,279.86 is: 1,075,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,861.87 : 1,708,253.73 = 779,279.86 : x
  2. Step 2: Convert to fraction form
    1,237,861.87/1,708,253.73 = 779,279.86/x
  3. Step 3: Cross multiply
    1,237,861.87x = 1,708,253.73 × 779,279.86
  4. Step 4: Simplify right side
    1,237,861.87x = 1,331,207,727,558.88
  5. Step 5: Solve for x
    x = 1,331,207,727,558.88/1,237,861.87
  6. Step 6: Final answer
    x = 1,075,408.94

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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.