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Finding the Fourth Proportional to 518,532.54, 777,784.23 and 283,364.46

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Solution

The fourth proportional to 518,532.54, 777,784.23 and 283,364.46 is: 425,038.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,532.54 : 777,784.23 = 283,364.46 : x
  2. Step 2: Convert to fraction form
    518,532.54/777,784.23 = 283,364.46/x
  3. Step 3: Cross multiply
    518,532.54x = 777,784.23 × 283,364.46
  4. Step 4: Simplify right side
    518,532.54x = 220,396,408,330.47
  5. Step 5: Solve for x
    x = 220,396,408,330.47/518,532.54
  6. Step 6: Final answer
    x = 425,038.72

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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.