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Finding the Fourth Proportional to 528,089.20, 792,036.60 and 328,051.60

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Solution

The fourth proportional to 528,089.20, 792,036.60 and 328,051.60 is: 492,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,089.20 : 792,036.60 = 328,051.60 : x
  2. Step 2: Convert to fraction form
    528,089.20/792,036.60 = 328,051.60/x
  3. Step 3: Cross multiply
    528,089.20x = 792,036.60 × 328,051.60
  4. Step 4: Simplify right side
    528,089.20x = 259,828,873,888.56
  5. Step 5: Solve for x
    x = 259,828,873,888.56/528,089.20
  6. Step 6: Final answer
    x = 492,017.02

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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.