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Finding the Fourth Proportional to 518,946.48, 716,214.96 and 304,171.20

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Solution

The fourth proportional to 518,946.48, 716,214.96 and 304,171.20 is: 419,796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,946.48 : 716,214.96 = 304,171.20 : x
  2. Step 2: Convert to fraction form
    518,946.48/716,214.96 = 304,171.20/x
  3. Step 3: Cross multiply
    518,946.48x = 716,214.96 × 304,171.20
  4. Step 4: Simplify right side
    518,946.48x = 217,851,963,841.15
  5. Step 5: Solve for x
    x = 217,851,963,841.15/518,946.48
  6. Step 6: Final answer
    x = 419,796.59

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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.