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Finding the Fourth Proportional to 528,060.60, 789,786.90 and 472,303.80

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Solution

The fourth proportional to 528,060.60, 789,786.90 and 472,303.80 is: 706,394.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,060.60 : 789,786.90 = 472,303.80 : x
  2. Step 2: Convert to fraction form
    528,060.60/789,786.90 = 472,303.80/x
  3. Step 3: Cross multiply
    528,060.60x = 789,786.90 × 472,303.80
  4. Step 4: Simplify right side
    528,060.60x = 373,019,354,060.22
  5. Step 5: Solve for x
    x = 373,019,354,060.22/528,060.60
  6. Step 6: Final answer
    x = 706,394.97

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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.