Home / 777,655.92-1,166,937.48-422,707.44

Finding the Fourth Proportional to 777,655.92, 1,166,937.48 and 422,707.44

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Solution

The fourth proportional to 777,655.92, 1,166,937.48 and 422,707.44 is: 634,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,655.92 : 1,166,937.48 = 422,707.44 : x
  2. Step 2: Convert to fraction form
    777,655.92/1,166,937.48 = 422,707.44/x
  3. Step 3: Cross multiply
    777,655.92x = 1,166,937.48 × 422,707.44
  4. Step 4: Simplify right side
    777,655.92x = 493,273,154,810.85
  5. Step 5: Solve for x
    x = 493,273,154,810.85/777,655.92
  6. Step 6: Final answer
    x = 634,307.72

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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.