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Finding the Fourth Proportional to 503,951.04, 695,424.15 and 289,071

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Solution

The fourth proportional to 503,951.04, 695,424.15 and 289,071 is: 398,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,951.04 : 695,424.15 = 289,071 : x
  2. Step 2: Convert to fraction form
    503,951.04/695,424.15 = 289,071/x
  3. Step 3: Cross multiply
    503,951.04x = 695,424.15 × 289,071
  4. Step 4: Simplify right side
    503,951.04x = 201,026,954,464.65
  5. Step 5: Solve for x
    x = 201,026,954,464.65/503,951.04
  6. Step 6: Final answer
    x = 398,901.76

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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.