Home / 1,224,104.23-1,689,156.30-680,205.55

Finding the Fourth Proportional to 1,224,104.23, 1,689,156.30 and 680,205.55

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Solution

The fourth proportional to 1,224,104.23, 1,689,156.30 and 680,205.55 is: 938,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,104.23 : 1,689,156.30 = 680,205.55 : x
  2. Step 2: Convert to fraction form
    1,224,104.23/1,689,156.30 = 680,205.55/x
  3. Step 3: Cross multiply
    1,224,104.23x = 1,689,156.30 × 680,205.55
  4. Step 4: Simplify right side
    1,224,104.23x = 1,148,973,490,077.47
  5. Step 5: Solve for x
    x = 1,148,973,490,077.47/1,224,104.23
  6. Step 6: Final answer
    x = 938,623.90

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Double scale
Find fourth proportional to 1,224,105.23, 1,689,157.68 and 680,206.55
Similar ratio
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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.