Home / 1,570,211.20-2,355,316.80-388,259.20

Finding the Fourth Proportional to 1,570,211.20, 2,355,316.80 and 388,259.20

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Solution

The fourth proportional to 1,570,211.20, 2,355,316.80 and 388,259.20 is: 582,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,211.20 : 2,355,316.80 = 388,259.20 : x
  2. Step 2: Convert to fraction form
    1,570,211.20/2,355,316.80 = 388,259.20/x
  3. Step 3: Cross multiply
    1,570,211.20x = 2,355,316.80 × 388,259.20
  4. Step 4: Simplify right side
    1,570,211.20x = 914,473,416,514.56
  5. Step 5: Solve for x
    x = 914,473,416,514.56/1,570,211.20
  6. Step 6: Final answer
    x = 582,388.80

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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.