Home / 885,723.92-1,221,753.48-631,157.36

Finding the Fourth Proportional to 885,723.92, 1,221,753.48 and 631,157.36

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Solution

The fourth proportional to 885,723.92, 1,221,753.48 and 631,157.36 is: 870,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,723.92 : 1,221,753.48 = 631,157.36 : x
  2. Step 2: Convert to fraction form
    885,723.92/1,221,753.48 = 631,157.36/x
  3. Step 3: Cross multiply
    885,723.92x = 1,221,753.48 × 631,157.36
  4. Step 4: Simplify right side
    885,723.92x = 771,118,701,007.61
  5. Step 5: Solve for x
    x = 771,118,701,007.61/885,723.92
  6. Step 6: Final answer
    x = 870,608.42

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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.