Home / 909,716.57-1,255,386.69-501,809.48

Finding the Fourth Proportional to 909,716.57, 1,255,386.69 and 501,809.48

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Solution

The fourth proportional to 909,716.57, 1,255,386.69 and 501,809.48 is: 692,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,716.57 : 1,255,386.69 = 501,809.48 : x
  2. Step 2: Convert to fraction form
    909,716.57/1,255,386.69 = 501,809.48/x
  3. Step 3: Cross multiply
    909,716.57x = 1,255,386.69 × 501,809.48
  4. Step 4: Simplify right side
    909,716.57x = 629,964,942,107.82
  5. Step 5: Solve for x
    x = 629,964,942,107.82/909,716.57
  6. Step 6: Final answer
    x = 692,484.85

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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.