Home / 842,522.85-1,162,397.79-479,690.10

Finding the Fourth Proportional to 842,522.85, 1,162,397.79 and 479,690.10

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Solution

The fourth proportional to 842,522.85, 1,162,397.79 and 479,690.10 is: 661,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,522.85 : 1,162,397.79 = 479,690.10 : x
  2. Step 2: Convert to fraction form
    842,522.85/1,162,397.79 = 479,690.10/x
  3. Step 3: Cross multiply
    842,522.85x = 1,162,397.79 × 479,690.10
  4. Step 4: Simplify right side
    842,522.85x = 557,590,712,124.88
  5. Step 5: Solve for x
    x = 557,590,712,124.88/842,522.85
  6. Step 6: Final answer
    x = 661,810.79

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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.