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Finding the Fourth Proportional to 528,063.84, 728,766.72 and 301,704.48

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Solution

The fourth proportional to 528,063.84, 728,766.72 and 301,704.48 is: 416,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063.84 : 728,766.72 = 301,704.48 : x
  2. Step 2: Convert to fraction form
    528,063.84/728,766.72 = 301,704.48/x
  3. Step 3: Cross multiply
    528,063.84x = 728,766.72 × 301,704.48
  4. Step 4: Simplify right side
    528,063.84x = 219,872,184,298.91
  5. Step 5: Solve for x
    x = 219,872,184,298.91/528,063.84
  6. Step 6: Final answer
    x = 416,374.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.