Home / 1,570,231.70-2,355,347.55-388,279.70

Finding the Fourth Proportional to 1,570,231.70, 2,355,347.55 and 388,279.70

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Solution

The fourth proportional to 1,570,231.70, 2,355,347.55 and 388,279.70 is: 582,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,231.70 : 2,355,347.55 = 388,279.70 : x
  2. Step 2: Convert to fraction form
    1,570,231.70/2,355,347.55 = 388,279.70/x
  3. Step 3: Cross multiply
    1,570,231.70x = 2,355,347.55 × 388,279.70
  4. Step 4: Simplify right side
    1,570,231.70x = 914,533,640,109.74
  5. Step 5: Solve for x
    x = 914,533,640,109.74/1,570,231.70
  6. Step 6: Final answer
    x = 582,419.55

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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.