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Finding the Fourth Proportional to 555,802.92, 766,939.47 and 394,599.15

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Solution

The fourth proportional to 555,802.92, 766,939.47 and 394,599.15 is: 544,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,802.92 : 766,939.47 = 394,599.15 : x
  2. Step 2: Convert to fraction form
    555,802.92/766,939.47 = 394,599.15/x
  3. Step 3: Cross multiply
    555,802.92x = 766,939.47 × 394,599.15
  4. Step 4: Simplify right side
    555,802.92x = 302,633,662,963.45
  5. Step 5: Solve for x
    x = 302,633,662,963.45/555,802.92
  6. Step 6: Final answer
    x = 544,498.15

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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.