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Finding the Fourth Proportional to 542,029.20, 813,043.80 and 276,308.70

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Solution

The fourth proportional to 542,029.20, 813,043.80 and 276,308.70 is: 414,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,029.20 : 813,043.80 = 276,308.70 : x
  2. Step 2: Convert to fraction form
    542,029.20/813,043.80 = 276,308.70/x
  3. Step 3: Cross multiply
    542,029.20x = 813,043.80 × 276,308.70
  4. Step 4: Simplify right side
    542,029.20x = 224,651,075,421.06
  5. Step 5: Solve for x
    x = 224,651,075,421.06/542,029.20
  6. Step 6: Final answer
    x = 414,463.05

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Double scale
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Similar ratio
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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.