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Finding the Fourth Proportional to 503,890.07, 695,369 and 274,448.25

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Solution

The fourth proportional to 503,890.07, 695,369 and 274,448.25 is: 378,738.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,890.07 : 695,369 = 274,448.25 : x
  2. Step 2: Convert to fraction form
    503,890.07/695,369 = 274,448.25/x
  3. Step 3: Cross multiply
    503,890.07x = 695,369 × 274,448.25
  4. Step 4: Simplify right side
    503,890.07x = 190,842,805,154.25
  5. Step 5: Solve for x
    x = 190,842,805,154.25/503,890.07
  6. Step 6: Final answer
    x = 378,738.97

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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.