Home / 770,123.82-1,155,262.88-264,618.20

Finding the Fourth Proportional to 770,123.82, 1,155,262.88 and 264,618.20

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Solution

The fourth proportional to 770,123.82, 1,155,262.88 and 264,618.20 is: 396,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,123.82 : 1,155,262.88 = 264,618.20 : x
  2. Step 2: Convert to fraction form
    770,123.82/1,155,262.88 = 264,618.20/x
  3. Step 3: Cross multiply
    770,123.82x = 1,155,262.88 × 264,618.20
  4. Step 4: Simplify right side
    770,123.82x = 305,703,583,832.42
  5. Step 5: Solve for x
    x = 305,703,583,832.42/770,123.82
  6. Step 6: Final answer
    x = 396,953.81

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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.