Home / 900,647.68-1,242,906.88-518,743.04

Finding the Fourth Proportional to 900,647.68, 1,242,906.88 and 518,743.04

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Solution

The fourth proportional to 900,647.68, 1,242,906.88 and 518,743.04 is: 715,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,647.68 : 1,242,906.88 = 518,743.04 : x
  2. Step 2: Convert to fraction form
    900,647.68/1,242,906.88 = 518,743.04/x
  3. Step 3: Cross multiply
    900,647.68x = 1,242,906.88 × 518,743.04
  4. Step 4: Simplify right side
    900,647.68x = 644,749,293,368.12
  5. Step 5: Solve for x
    x = 644,749,293,368.12/900,647.68
  6. Step 6: Final answer
    x = 715,872.93

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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.