Home / 1,224,228.40-1,689,401.44-680,350.48

Finding the Fourth Proportional to 1,224,228.40, 1,689,401.44 and 680,350.48

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Solution

The fourth proportional to 1,224,228.40, 1,689,401.44 and 680,350.48 is: 938,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,228.40 : 1,689,401.44 = 680,350.48 : x
  2. Step 2: Convert to fraction form
    1,224,228.40/1,689,401.44 = 680,350.48/x
  3. Step 3: Cross multiply
    1,224,228.40x = 1,689,401.44 × 680,350.48
  4. Step 4: Simplify right side
    1,224,228.40x = 1,149,385,080,616.69
  5. Step 5: Solve for x
    x = 1,149,385,080,616.69/1,224,228.40
  6. Step 6: Final answer
    x = 938,864.91

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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.