Home / 551,540.08-761,042.43-309,776.35

Finding the Fourth Proportional to 551,540.08, 761,042.43 and 309,776.35

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Solution

The fourth proportional to 551,540.08, 761,042.43 and 309,776.35 is: 427,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,540.08 : 761,042.43 = 309,776.35 : x
  2. Step 2: Convert to fraction form
    551,540.08/761,042.43 = 309,776.35/x
  3. Step 3: Cross multiply
    551,540.08x = 761,042.43 × 309,776.35
  4. Step 4: Simplify right side
    551,540.08x = 235,752,946,160.53
  5. Step 5: Solve for x
    x = 235,752,946,160.53/551,540.08
  6. Step 6: Final answer
    x = 427,444.81

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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.