Home / 909,438.74-1,255,033.34-501,555.14

Finding the Fourth Proportional to 909,438.74, 1,255,033.34 and 501,555.14

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Solution

The fourth proportional to 909,438.74, 1,255,033.34 and 501,555.14 is: 692,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,438.74 : 1,255,033.34 = 501,555.14 : x
  2. Step 2: Convert to fraction form
    909,438.74/1,255,033.34 = 501,555.14/x
  3. Step 3: Cross multiply
    909,438.74x = 1,255,033.34 × 501,555.14
  4. Step 4: Simplify right side
    909,438.74x = 629,468,413,765.43
  5. Step 5: Solve for x
    x = 629,468,413,765.43/909,438.74
  6. Step 6: Final answer
    x = 692,150.43

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Double scale
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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.