Home / 990,562.60-1,481,907.30-858,905.20

Finding the Fourth Proportional to 990,562.60, 1,481,907.30 and 858,905.20

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Solution

The fourth proportional to 990,562.60, 1,481,907.30 and 858,905.20 is: 1,284,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,562.60 : 1,481,907.30 = 858,905.20 : x
  2. Step 2: Convert to fraction form
    990,562.60/1,481,907.30 = 858,905.20/x
  3. Step 3: Cross multiply
    990,562.60x = 1,481,907.30 × 858,905.20
  4. Step 4: Simplify right side
    990,562.60x = 1,272,817,885,887.96
  5. Step 5: Solve for x
    x = 1,272,817,885,887.96/990,562.60
  6. Step 6: Final answer
    x = 1,284,944.42

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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.