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Finding the Fourth Proportional to 504,065.94, 695,605.59 and 289,239.81

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Solution

The fourth proportional to 504,065.94, 695,605.59 and 289,239.81 is: 399,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,065.94 : 695,605.59 = 289,239.81 : x
  2. Step 2: Convert to fraction form
    504,065.94/695,605.59 = 289,239.81/x
  3. Step 3: Cross multiply
    504,065.94x = 695,605.59 × 289,239.81
  4. Step 4: Simplify right side
    504,065.94x = 201,196,828,686.54
  5. Step 5: Solve for x
    x = 201,196,828,686.54/504,065.94
  6. Step 6: Final answer
    x = 399,147.84

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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.