Home / 557,031.25-768,701.23-302,380.62

Finding the Fourth Proportional to 557,031.25, 768,701.23 and 302,380.62

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Solution

The fourth proportional to 557,031.25, 768,701.23 and 302,380.62 is: 417,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,031.25 : 768,701.23 = 302,380.62 : x
  2. Step 2: Convert to fraction form
    557,031.25/768,701.23 = 302,380.62/x
  3. Step 3: Cross multiply
    557,031.25x = 768,701.23 × 302,380.62
  4. Step 4: Simplify right side
    557,031.25x = 232,440,354,522.16
  5. Step 5: Solve for x
    x = 232,440,354,522.16/557,031.25
  6. Step 6: Final answer
    x = 417,284.23

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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.