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Finding the Fourth Proportional to 528,172.60, 728,864.34 and 301,818.04

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Solution

The fourth proportional to 528,172.60, 728,864.34 and 301,818.04 is: 416,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,172.60 : 728,864.34 = 301,818.04 : x
  2. Step 2: Convert to fraction form
    528,172.60/728,864.34 = 301,818.04/x
  3. Step 3: Cross multiply
    528,172.60x = 728,864.34 × 301,818.04
  4. Step 4: Simplify right side
    528,172.60x = 219,984,406,524.69
  5. Step 5: Solve for x
    x = 219,984,406,524.69/528,172.60
  6. Step 6: Final answer
    x = 416,500.98

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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.