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Finding the Fourth Proportional to 542,636.90, 813,760.95 and 276,308.90

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Solution

The fourth proportional to 542,636.90, 813,760.95 and 276,308.90 is: 414,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,636.90 : 813,760.95 = 276,308.90 : x
  2. Step 2: Convert to fraction form
    542,636.90/813,760.95 = 276,308.90/x
  3. Step 3: Cross multiply
    542,636.90x = 813,760.95 × 276,308.90
  4. Step 4: Simplify right side
    542,636.90x = 224,849,392,957.46
  5. Step 5: Solve for x
    x = 224,849,392,957.46/542,636.90
  6. Step 6: Final answer
    x = 414,364.36

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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.