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Finding the Fourth Proportional to 518,730.56, 716,438.67 and 348,669.44

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Solution

The fourth proportional to 518,730.56, 716,438.67 and 348,669.44 is: 481,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,730.56 : 716,438.67 = 348,669.44 : x
  2. Step 2: Convert to fraction form
    518,730.56/716,438.67 = 348,669.44/x
  3. Step 3: Cross multiply
    518,730.56x = 716,438.67 × 348,669.44
  4. Step 4: Simplify right side
    518,730.56x = 249,800,271,654.34
  5. Step 5: Solve for x
    x = 249,800,271,654.34/518,730.56
  6. Step 6: Final answer
    x = 481,560.74

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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.