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Finding the Fourth Proportional to 528,267.12, 729,001.56 and 301,906.80

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Solution

The fourth proportional to 528,267.12, 729,001.56 and 301,906.80 is: 416,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,267.12 : 729,001.56 = 301,906.80 : x
  2. Step 2: Convert to fraction form
    528,267.12/729,001.56 = 301,906.80/x
  3. Step 3: Cross multiply
    528,267.12x = 729,001.56 × 301,906.80
  4. Step 4: Simplify right side
    528,267.12x = 220,090,528,174.61
  5. Step 5: Solve for x
    x = 220,090,528,174.61/528,267.12
  6. Step 6: Final answer
    x = 416,627.35

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1.5x scale

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.