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Finding the Fourth Proportional to 555,961.86, 767,221.77 and 310,944.04

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Solution

The fourth proportional to 555,961.86, 767,221.77 and 310,944.04 is: 429,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,961.86 : 767,221.77 = 310,944.04 : x
  2. Step 2: Convert to fraction form
    555,961.86/767,221.77 = 310,944.04/x
  3. Step 3: Cross multiply
    555,961.86x = 767,221.77 × 310,944.04
  4. Step 4: Simplify right side
    555,961.86x = 238,563,036,739.75
  5. Step 5: Solve for x
    x = 238,563,036,739.75/555,961.86
  6. Step 6: Final answer
    x = 429,099.64

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1.5x scale

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.