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Finding the Fourth Proportional to 750,572.73, 1,035,775.55 and 428,230.80

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Solution

The fourth proportional to 750,572.73, 1,035,775.55 and 428,230.80 is: 590,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,572.73 : 1,035,775.55 = 428,230.80 : x
  2. Step 2: Convert to fraction form
    750,572.73/1,035,775.55 = 428,230.80/x
  3. Step 3: Cross multiply
    750,572.73x = 1,035,775.55 × 428,230.80
  4. Step 4: Simplify right side
    750,572.73x = 443,550,993,467.52
  5. Step 5: Solve for x
    x = 443,550,993,467.52/750,572.73
  6. Step 6: Final answer
    x = 590,950.05

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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.