Home / 762,764.96-1,144,196.04-257,376.80

Finding the Fourth Proportional to 762,764.96, 1,144,196.04 and 257,376.80

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Solution

The fourth proportional to 762,764.96, 1,144,196.04 and 257,376.80 is: 386,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,764.96 : 1,144,196.04 = 257,376.80 : x
  2. Step 2: Convert to fraction form
    762,764.96/1,144,196.04 = 257,376.80/x
  3. Step 3: Cross multiply
    762,764.96x = 1,144,196.04 × 257,376.80
  4. Step 4: Simplify right side
    762,764.96x = 294,489,515,347.87
  5. Step 5: Solve for x
    x = 294,489,515,347.87/762,764.96
  6. Step 6: Final answer
    x = 386,081.60

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1.5x scale

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.