Home / 1,224,225.40-1,689,397.30-680,347.48

Finding the Fourth Proportional to 1,224,225.40, 1,689,397.30 and 680,347.48

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Solution

The fourth proportional to 1,224,225.40, 1,689,397.30 and 680,347.48 is: 938,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,225.40 : 1,689,397.30 = 680,347.48 : x
  2. Step 2: Convert to fraction form
    1,224,225.40/1,689,397.30 = 680,347.48/x
  3. Step 3: Cross multiply
    1,224,225.40x = 1,689,397.30 × 680,347.48
  4. Step 4: Simplify right side
    1,224,225.40x = 1,149,377,195,773.80
  5. Step 5: Solve for x
    x = 1,149,377,195,773.80/1,224,225.40
  6. Step 6: Final answer
    x = 938,860.77

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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.