Home / 771,722.72-1,157,627.81-239,319.44

Finding the Fourth Proportional to 771,722.72, 1,157,627.81 and 239,319.44

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Solution

The fourth proportional to 771,722.72, 1,157,627.81 and 239,319.44 is: 358,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,722.72 : 1,157,627.81 = 239,319.44 : x
  2. Step 2: Convert to fraction form
    771,722.72/1,157,627.81 = 239,319.44/x
  3. Step 3: Cross multiply
    771,722.72x = 1,157,627.81 × 239,319.44
  4. Step 4: Simplify right side
    771,722.72x = 277,042,833,429.49
  5. Step 5: Solve for x
    x = 277,042,833,429.49/771,722.72
  6. Step 6: Final answer
    x = 358,992.72

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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.