Home / 886,311.77-1,224,128.63-645,670.49

Finding the Fourth Proportional to 886,311.77, 1,224,128.63 and 645,670.49

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Solution

The fourth proportional to 886,311.77, 1,224,128.63 and 645,670.49 is: 891,767.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,311.77 : 1,224,128.63 = 645,670.49 : x
  2. Step 2: Convert to fraction form
    886,311.77/1,224,128.63 = 645,670.49/x
  3. Step 3: Cross multiply
    886,311.77x = 1,224,128.63 × 645,670.49
  4. Step 4: Simplify right side
    886,311.77x = 790,383,727,848.66
  5. Step 5: Solve for x
    x = 790,383,727,848.66/886,311.77
  6. Step 6: Final answer
    x = 891,767.16

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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.