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Finding the Fourth Proportional to 507,278.73, 760,894.40 and 207,685.25

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Solution

The fourth proportional to 507,278.73, 760,894.40 and 207,685.25 is: 311,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,278.73 : 760,894.40 = 207,685.25 : x
  2. Step 2: Convert to fraction form
    507,278.73/760,894.40 = 207,685.25/x
  3. Step 3: Cross multiply
    507,278.73x = 760,894.40 × 207,685.25
  4. Step 4: Simplify right side
    507,278.73x = 158,026,543,687.60
  5. Step 5: Solve for x
    x = 158,026,543,687.60/507,278.73
  6. Step 6: Final answer
    x = 311,518.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.