Home / 759,426.40-1,139,139.60-404,257.60

Finding the Fourth Proportional to 759,426.40, 1,139,139.60 and 404,257.60

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Solution

The fourth proportional to 759,426.40, 1,139,139.60 and 404,257.60 is: 606,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,426.40 : 1,139,139.60 = 404,257.60 : x
  2. Step 2: Convert to fraction form
    759,426.40/1,139,139.60 = 404,257.60/x
  3. Step 3: Cross multiply
    759,426.40x = 1,139,139.60 × 404,257.60
  4. Step 4: Simplify right side
    759,426.40x = 460,505,840,760.96
  5. Step 5: Solve for x
    x = 460,505,840,760.96/759,426.40
  6. Step 6: Final answer
    x = 606,386.40

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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.