Home / 1,619,132.30-2,430,253.65-821,314.70

Finding the Fourth Proportional to 1,619,132.30, 2,430,253.65 and 821,314.70

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Solution

The fourth proportional to 1,619,132.30, 2,430,253.65 and 821,314.70 is: 1,232,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,132.30 : 2,430,253.65 = 821,314.70 : x
  2. Step 2: Convert to fraction form
    1,619,132.30/2,430,253.65 = 821,314.70/x
  3. Step 3: Cross multiply
    1,619,132.30x = 2,430,253.65 × 821,314.70
  4. Step 4: Simplify right side
    1,619,132.30x = 1,996,003,047,473.65
  5. Step 5: Solve for x
    x = 1,996,003,047,473.65/1,619,132.30
  6. Step 6: Final answer
    x = 1,232,760.93

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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.