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Finding the Fourth Proportional to 542,267.70, 813,401.55 and 276,547.20

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Solution

The fourth proportional to 542,267.70, 813,401.55 and 276,547.20 is: 414,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,267.70 : 813,401.55 = 276,547.20 : x
  2. Step 2: Convert to fraction form
    542,267.70/813,401.55 = 276,547.20/x
  3. Step 3: Cross multiply
    542,267.70x = 813,401.55 × 276,547.20
  4. Step 4: Simplify right side
    542,267.70x = 224,943,921,128.16
  5. Step 5: Solve for x
    x = 224,943,921,128.16/542,267.70
  6. Step 6: Final answer
    x = 414,820.80

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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.