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Finding the Fourth Proportional to 528,065.12, 792,364.22 and 208,446.01

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Solution

The fourth proportional to 528,065.12, 792,364.22 and 208,446.01 is: 312,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,065.12 : 792,364.22 = 208,446.01 : x
  2. Step 2: Convert to fraction form
    528,065.12/792,364.22 = 208,446.01/x
  3. Step 3: Cross multiply
    528,065.12x = 792,364.22 × 208,446.01
  4. Step 4: Simplify right side
    528,065.12x = 165,165,160,125.76
  5. Step 5: Solve for x
    x = 165,165,160,125.76/528,065.12
  6. Step 6: Final answer
    x = 312,774.23

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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.