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Finding the Fourth Proportional to 523,220.04, 722,181.72 and 308,503.14

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Solution

The fourth proportional to 523,220.04, 722,181.72 and 308,503.14 is: 425,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,220.04 : 722,181.72 = 308,503.14 : x
  2. Step 2: Convert to fraction form
    523,220.04/722,181.72 = 308,503.14/x
  3. Step 3: Cross multiply
    523,220.04x = 722,181.72 × 308,503.14
  4. Step 4: Simplify right side
    523,220.04x = 222,795,328,270.60
  5. Step 5: Solve for x
    x = 222,795,328,270.60/523,220.04
  6. Step 6: Final answer
    x = 425,815.74

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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.