Home / 1,224,175.86-1,689,328.98-680,297.76

Finding the Fourth Proportional to 1,224,175.86, 1,689,328.98 and 680,297.76

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Solution

The fourth proportional to 1,224,175.86, 1,689,328.98 and 680,297.76 is: 938,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,175.86 : 1,689,328.98 = 680,297.76 : x
  2. Step 2: Convert to fraction form
    1,224,175.86/1,689,328.98 = 680,297.76/x
  3. Step 3: Cross multiply
    1,224,175.86x = 1,689,328.98 × 680,297.76
  4. Step 4: Simplify right side
    1,224,175.86x = 1,149,246,720,997.08
  5. Step 5: Solve for x
    x = 1,149,246,720,997.08/1,224,175.86
  6. Step 6: Final answer
    x = 938,792.18

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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.