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Finding the Fourth Proportional to 518,730.44, 716,438.50 and 348,669.32

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Solution

The fourth proportional to 518,730.44, 716,438.50 and 348,669.32 is: 481,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,730.44 : 716,438.50 = 348,669.32 : x
  2. Step 2: Convert to fraction form
    518,730.44/716,438.50 = 348,669.32/x
  3. Step 3: Cross multiply
    518,730.44x = 716,438.50 × 348,669.32
  4. Step 4: Simplify right side
    518,730.44x = 249,800,122,873.47
  5. Step 5: Solve for x
    x = 249,800,122,873.47/518,730.44
  6. Step 6: Final answer
    x = 481,560.56

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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.