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Finding the Fourth Proportional to 503,728.19, 695,141.93 and 274,284.93

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Solution

The fourth proportional to 503,728.19, 695,141.93 and 274,284.93 is: 378,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,728.19 : 695,141.93 = 274,284.93 : x
  2. Step 2: Convert to fraction form
    503,728.19/695,141.93 = 274,284.93/x
  3. Step 3: Cross multiply
    503,728.19x = 695,141.93 × 274,284.93
  4. Step 4: Simplify right side
    503,728.19x = 190,666,955,610.12
  5. Step 5: Solve for x
    x = 190,666,955,610.12/503,728.19
  6. Step 6: Final answer
    x = 378,511.59

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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.