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Finding the Fourth Proportional to 909,501.80, 1,364,020 and 269,655.92

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Solution

The fourth proportional to 909,501.80, 1,364,020 and 269,655.92 is: 404,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,501.80 : 1,364,020 = 269,655.92 : x
  2. Step 2: Convert to fraction form
    909,501.80/1,364,020 = 269,655.92/x
  3. Step 3: Cross multiply
    909,501.80x = 1,364,020 × 269,655.92
  4. Step 4: Simplify right side
    909,501.80x = 367,816,064,588.35
  5. Step 5: Solve for x
    x = 367,816,064,588.35/909,501.80
  6. Step 6: Final answer
    x = 404,414.88

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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.