Home / 909,715.82-1,255,385.66-501,808.73

Finding the Fourth Proportional to 909,715.82, 1,255,385.66 and 501,808.73

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Solution

The fourth proportional to 909,715.82, 1,255,385.66 and 501,808.73 is: 692,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,715.82 : 1,255,385.66 = 501,808.73 : x
  2. Step 2: Convert to fraction form
    909,715.82/1,255,385.66 = 501,808.73/x
  3. Step 3: Cross multiply
    909,715.82x = 1,255,385.66 × 501,808.73
  4. Step 4: Simplify right side
    909,715.82x = 629,963,474,918.84
  5. Step 5: Solve for x
    x = 629,963,474,918.84/909,715.82
  6. Step 6: Final answer
    x = 692,483.81

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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.