Home / 913,051.52-1,368,834.96-380,968.88

Finding the Fourth Proportional to 913,051.52, 1,368,834.96 and 380,968.88

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Solution

The fourth proportional to 913,051.52, 1,368,834.96 and 380,968.88 is: 571,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,051.52 : 1,368,834.96 = 380,968.88 : x
  2. Step 2: Convert to fraction form
    913,051.52/1,368,834.96 = 380,968.88/x
  3. Step 3: Cross multiply
    913,051.52x = 1,368,834.96 × 380,968.88
  4. Step 4: Simplify right side
    913,051.52x = 521,483,521,616.05
  5. Step 5: Solve for x
    x = 521,483,521,616.05/913,051.52
  6. Step 6: Final answer
    x = 571,143.59

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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.