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Finding the Fourth Proportional to 909,468, 1,255,048.83 and 501,607.89

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Solution

The fourth proportional to 909,468, 1,255,048.83 and 501,607.89 is: 692,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,468 : 1,255,048.83 = 501,607.89 : x
  2. Step 2: Convert to fraction form
    909,468/1,255,048.83 = 501,607.89/x
  3. Step 3: Cross multiply
    909,468x = 1,255,048.83 × 501,607.89
  4. Step 4: Simplify right side
    909,468x = 629,542,395,463.27
  5. Step 5: Solve for x
    x = 629,542,395,463.27/909,468
  6. Step 6: Final answer
    x = 692,209.51

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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.