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Finding the Fourth Proportional to 501,788.30, 692,468.49 and 272,345.55

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Solution

The fourth proportional to 501,788.30, 692,468.49 and 272,345.55 is: 375,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,788.30 : 692,468.49 = 272,345.55 : x
  2. Step 2: Convert to fraction form
    501,788.30/692,468.49 = 272,345.55/x
  3. Step 3: Cross multiply
    501,788.30x = 692,468.49 × 272,345.55
  4. Step 4: Simplify right side
    501,788.30x = 188,590,711,766.72
  5. Step 5: Solve for x
    x = 188,590,711,766.72/501,788.30
  6. Step 6: Final answer
    x = 375,837.21

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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.