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Finding the Fourth Proportional to 507,220.52, 699,959.28 and 274,646.36

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Solution

The fourth proportional to 507,220.52, 699,959.28 and 274,646.36 is: 379,009.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,220.52 : 699,959.28 = 274,646.36 : x
  2. Step 2: Convert to fraction form
    507,220.52/699,959.28 = 274,646.36/x
  3. Step 3: Cross multiply
    507,220.52x = 699,959.28 × 274,646.36
  4. Step 4: Simplify right side
    507,220.52x = 192,241,268,400.22
  5. Step 5: Solve for x
    x = 192,241,268,400.22/507,220.52
  6. Step 6: Final answer
    x = 379,009.25

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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.