Home / 909,205.97-1,254,712.68-501,322.40

Finding the Fourth Proportional to 909,205.97, 1,254,712.68 and 501,322.40

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Solution

The fourth proportional to 909,205.97, 1,254,712.68 and 501,322.40 is: 691,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,205.97 : 1,254,712.68 = 501,322.40 : x
  2. Step 2: Convert to fraction form
    909,205.97/1,254,712.68 = 501,322.40/x
  3. Step 3: Cross multiply
    909,205.97x = 1,254,712.68 × 501,322.40
  4. Step 4: Simplify right side
    909,205.97x = 629,015,570,479.64
  5. Step 5: Solve for x
    x = 629,015,570,479.64/909,205.97
  6. Step 6: Final answer
    x = 691,829.57

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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.