Home / 1,487,860.20-2,231,876.70-422,980.20

Finding the Fourth Proportional to 1,487,860.20, 2,231,876.70 and 422,980.20

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Solution

The fourth proportional to 1,487,860.20, 2,231,876.70 and 422,980.20 is: 634,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,860.20 : 2,231,876.70 = 422,980.20 : x
  2. Step 2: Convert to fraction form
    1,487,860.20/2,231,876.70 = 422,980.20/x
  3. Step 3: Cross multiply
    1,487,860.20x = 2,231,876.70 × 422,980.20
  4. Step 4: Simplify right side
    1,487,860.20x = 944,039,652,941.34
  5. Step 5: Solve for x
    x = 944,039,652,941.34/1,487,860.20
  6. Step 6: Final answer
    x = 634,494.86

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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.