Home / 766,144.15-1,148,817.14-285,977.08

Finding the Fourth Proportional to 766,144.15, 1,148,817.14 and 285,977.08

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Solution

The fourth proportional to 766,144.15, 1,148,817.14 and 285,977.08 is: 428,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,144.15 : 1,148,817.14 = 285,977.08 : x
  2. Step 2: Convert to fraction form
    766,144.15/1,148,817.14 = 285,977.08/x
  3. Step 3: Cross multiply
    766,144.15x = 1,148,817.14 × 285,977.08
  4. Step 4: Simplify right side
    766,144.15x = 328,535,365,407.07
  5. Step 5: Solve for x
    x = 328,535,365,407.07/766,144.15
  6. Step 6: Final answer
    x = 428,816.65

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Double scale
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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.