Home / 1,336,759.20-2,005,430.40-390,052.80

Finding the Fourth Proportional to 1,336,759.20, 2,005,430.40 and 390,052.80

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Solution

The fourth proportional to 1,336,759.20, 2,005,430.40 and 390,052.80 is: 585,164.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,759.20 : 2,005,430.40 = 390,052.80 : x
  2. Step 2: Convert to fraction form
    1,336,759.20/2,005,430.40 = 390,052.80/x
  3. Step 3: Cross multiply
    1,336,759.20x = 2,005,430.40 × 390,052.80
  4. Step 4: Simplify right side
    1,336,759.20x = 782,223,742,725.12
  5. Step 5: Solve for x
    x = 782,223,742,725.12/1,336,759.20
  6. Step 6: Final answer
    x = 585,164.29

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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.