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Finding the Fourth Proportional to 518,996.58, 716,093.06 and 315,042.45

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Solution

The fourth proportional to 518,996.58, 716,093.06 and 315,042.45 is: 434,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,996.58 : 716,093.06 = 315,042.45 : x
  2. Step 2: Convert to fraction form
    518,996.58/716,093.06 = 315,042.45/x
  3. Step 3: Cross multiply
    518,996.58x = 716,093.06 × 315,042.45
  4. Step 4: Simplify right side
    518,996.58x = 225,599,710,475.19
  5. Step 5: Solve for x
    x = 225,599,710,475.19/518,996.58
  6. Step 6: Final answer
    x = 434,684.39

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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.