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Finding the Fourth Proportional to 518,293.20, 777,548.88 and 293,761.20

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Solution

The fourth proportional to 518,293.20, 777,548.88 and 293,761.20 is: 440,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,293.20 : 777,548.88 = 293,761.20 : x
  2. Step 2: Convert to fraction form
    518,293.20/777,548.88 = 293,761.20/x
  3. Step 3: Cross multiply
    518,293.20x = 777,548.88 × 293,761.20
  4. Step 4: Simplify right side
    518,293.20x = 228,413,692,047.46
  5. Step 5: Solve for x
    x = 228,413,692,047.46/518,293.20
  6. Step 6: Final answer
    x = 440,703.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.