Home / 1,570,209.20-2,355,313.80-388,257.20

Finding the Fourth Proportional to 1,570,209.20, 2,355,313.80 and 388,257.20

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Solution

The fourth proportional to 1,570,209.20, 2,355,313.80 and 388,257.20 is: 582,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,209.20 : 2,355,313.80 = 388,257.20 : x
  2. Step 2: Convert to fraction form
    1,570,209.20/2,355,313.80 = 388,257.20/x
  3. Step 3: Cross multiply
    1,570,209.20x = 2,355,313.80 × 388,257.20
  4. Step 4: Simplify right side
    1,570,209.20x = 914,467,541,109.36
  5. Step 5: Solve for x
    x = 914,467,541,109.36/1,570,209.20
  6. Step 6: Final answer
    x = 582,385.80

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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.