Home / 1,145,589.20-1,717,735.80-435,640.40

Finding the Fourth Proportional to 1,145,589.20, 1,717,735.80 and 435,640.40

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Solution

The fourth proportional to 1,145,589.20, 1,717,735.80 and 435,640.40 is: 653,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,589.20 : 1,717,735.80 = 435,640.40 : x
  2. Step 2: Convert to fraction form
    1,145,589.20/1,717,735.80 = 435,640.40/x
  3. Step 3: Cross multiply
    1,145,589.20x = 1,717,735.80 × 435,640.40
  4. Step 4: Simplify right side
    1,145,589.20x = 748,315,111,006.32
  5. Step 5: Solve for x
    x = 748,315,111,006.32/1,145,589.20
  6. Step 6: Final answer
    x = 653,214.18

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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.