Home / 2,605,649.20-3,908,285.40-808,486.80

Finding the Fourth Proportional to 2,605,649.20, 3,908,285.40 and 808,486.80

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Solution

The fourth proportional to 2,605,649.20, 3,908,285.40 and 808,486.80 is: 1,212,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605,649.20 : 3,908,285.40 = 808,486.80 : x
  2. Step 2: Convert to fraction form
    2,605,649.20/3,908,285.40 = 808,486.80/x
  3. Step 3: Cross multiply
    2,605,649.20x = 3,908,285.40 × 808,486.80
  4. Step 4: Simplify right side
    2,605,649.20x = 3,159,797,156,532.72
  5. Step 5: Solve for x
    x = 3,159,797,156,532.72/2,605,649.20
  6. Step 6: Final answer
    x = 1,212,671.74

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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.