Home / 528,035.60-789,749.40-472,278.80

Finding the Fourth Proportional to 528,035.60, 789,749.40 and 472,278.80

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Solution

The fourth proportional to 528,035.60, 789,749.40 and 472,278.80 is: 706,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,035.60 : 789,749.40 = 472,278.80 : x
  2. Step 2: Convert to fraction form
    528,035.60/789,749.40 = 472,278.80/x
  3. Step 3: Cross multiply
    528,035.60x = 789,749.40 × 472,278.80
  4. Step 4: Simplify right side
    528,035.60x = 372,981,898,932.72
  5. Step 5: Solve for x
    x = 372,981,898,932.72/528,035.60
  6. Step 6: Final answer
    x = 706,357.49

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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.