Home / 721,061.30-1,081,263.90-384,015.44

Finding the Fourth Proportional to 721,061.30, 1,081,263.90 and 384,015.44

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Solution

The fourth proportional to 721,061.30, 1,081,263.90 and 384,015.44 is: 575,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,061.30 : 1,081,263.90 = 384,015.44 : x
  2. Step 2: Convert to fraction form
    721,061.30/1,081,263.90 = 384,015.44/x
  3. Step 3: Cross multiply
    721,061.30x = 1,081,263.90 × 384,015.44
  4. Step 4: Simplify right side
    721,061.30x = 415,222,032,314.62
  5. Step 5: Solve for x
    x = 415,222,032,314.62/721,061.30
  6. Step 6: Final answer
    x = 575,848.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.