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Finding the Fourth Proportional to 562,165.76, 775,778.64 and 307,514.72

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Solution

The fourth proportional to 562,165.76, 775,778.64 and 307,514.72 is: 424,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,165.76 : 775,778.64 = 307,514.72 : x
  2. Step 2: Convert to fraction form
    562,165.76/775,778.64 = 307,514.72/x
  3. Step 3: Cross multiply
    562,165.76x = 775,778.64 × 307,514.72
  4. Step 4: Simplify right side
    562,165.76x = 238,563,351,261.58
  5. Step 5: Solve for x
    x = 238,563,351,261.58/562,165.76
  6. Step 6: Final answer
    x = 424,364.78

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1.5x scale

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.