Home / 909,645.39-1,255,300.54-501,764.42

Finding the Fourth Proportional to 909,645.39, 1,255,300.54 and 501,764.42

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Solution

The fourth proportional to 909,645.39, 1,255,300.54 and 501,764.42 is: 692,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,645.39 : 1,255,300.54 = 501,764.42 : x
  2. Step 2: Convert to fraction form
    909,645.39/1,255,300.54 = 501,764.42/x
  3. Step 3: Cross multiply
    909,645.39x = 1,255,300.54 × 501,764.42
  4. Step 4: Simplify right side
    909,645.39x = 629,865,149,262.63
  5. Step 5: Solve for x
    x = 629,865,149,262.63/909,645.39
  6. Step 6: Final answer
    x = 692,429.33

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1.5x scale

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.