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Finding the Fourth Proportional to 528,026.40, 792,039.60 and 291,830.40

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Solution

The fourth proportional to 528,026.40, 792,039.60 and 291,830.40 is: 437,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,026.40 : 792,039.60 = 291,830.40 : x
  2. Step 2: Convert to fraction form
    528,026.40/792,039.60 = 291,830.40/x
  3. Step 3: Cross multiply
    528,026.40x = 792,039.60 × 291,830.40
  4. Step 4: Simplify right side
    528,026.40x = 231,141,233,283.84
  5. Step 5: Solve for x
    x = 231,141,233,283.84/528,026.40
  6. Step 6: Final answer
    x = 437,745.60

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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.