Home / 1,217,878.72-1,682,279.04-934,895.68

Finding the Fourth Proportional to 1,217,878.72, 1,682,279.04 and 934,895.68

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Solution

The fourth proportional to 1,217,878.72, 1,682,279.04 and 934,895.68 is: 1,291,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,878.72 : 1,682,279.04 = 934,895.68 : x
  2. Step 2: Convert to fraction form
    1,217,878.72/1,682,279.04 = 934,895.68/x
  3. Step 3: Cross multiply
    1,217,878.72x = 1,682,279.04 × 934,895.68
  4. Step 4: Simplify right side
    1,217,878.72x = 1,572,755,407,050.55
  5. Step 5: Solve for x
    x = 1,572,755,407,050.55/1,217,878.72
  6. Step 6: Final answer
    x = 1,291,389.18

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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.