Home / 1,243,619.60-1,865,429.40-345,059.60

Finding the Fourth Proportional to 1,243,619.60, 1,865,429.40 and 345,059.60

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Solution

The fourth proportional to 1,243,619.60, 1,865,429.40 and 345,059.60 is: 517,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,619.60 : 1,865,429.40 = 345,059.60 : x
  2. Step 2: Convert to fraction form
    1,243,619.60/1,865,429.40 = 345,059.60/x
  3. Step 3: Cross multiply
    1,243,619.60x = 1,865,429.40 × 345,059.60
  4. Step 4: Simplify right side
    1,243,619.60x = 643,684,322,592.24
  5. Step 5: Solve for x
    x = 643,684,322,592.24/1,243,619.60
  6. Step 6: Final answer
    x = 517,589.40

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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.