Home / 1,224,090.82-1,689,194.18-680,221.74

Finding the Fourth Proportional to 1,224,090.82, 1,689,194.18 and 680,221.74

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Solution

The fourth proportional to 1,224,090.82, 1,689,194.18 and 680,221.74 is: 938,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,090.82 : 1,689,194.18 = 680,221.74 : x
  2. Step 2: Convert to fraction form
    1,224,090.82/1,689,194.18 = 680,221.74/x
  3. Step 3: Cross multiply
    1,224,090.82x = 1,689,194.18 × 680,221.74
  4. Step 4: Simplify right side
    1,224,090.82x = 1,149,026,604,317.47
  5. Step 5: Solve for x
    x = 1,149,026,604,317.47/1,224,090.82
  6. Step 6: Final answer
    x = 938,677.58

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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.