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Finding the Fourth Proportional to 528,026.40, 792,039.60 and 304,077.60

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Solution

The fourth proportional to 528,026.40, 792,039.60 and 304,077.60 is: 456,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,026.40 : 792,039.60 = 304,077.60 : x
  2. Step 2: Convert to fraction form
    528,026.40/792,039.60 = 304,077.60/x
  3. Step 3: Cross multiply
    528,026.40x = 792,039.60 × 304,077.60
  4. Step 4: Simplify right side
    528,026.40x = 240,841,500,672.96
  5. Step 5: Solve for x
    x = 240,841,500,672.96/528,026.40
  6. Step 6: Final answer
    x = 456,116.40

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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.