Home / 1,211,630.13-1,671,981.48-667,764.27

Finding the Fourth Proportional to 1,211,630.13, 1,671,981.48 and 667,764.27

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Solution

The fourth proportional to 1,211,630.13, 1,671,981.48 and 667,764.27 is: 921,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,630.13 : 1,671,981.48 = 667,764.27 : x
  2. Step 2: Convert to fraction form
    1,211,630.13/1,671,981.48 = 667,764.27/x
  3. Step 3: Cross multiply
    1,211,630.13x = 1,671,981.48 × 667,764.27
  4. Step 4: Simplify right side
    1,211,630.13x = 1,116,489,492,445.72
  5. Step 5: Solve for x
    x = 1,116,489,492,445.72/1,211,630.13
  6. Step 6: Final answer
    x = 921,477.16

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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.