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Finding the Fourth Proportional to 1,570,800, 2,356,200 and 388,848

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Solution

The fourth proportional to 1,570,800, 2,356,200 and 388,848 is: 583,272

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,800 : 2,356,200 = 388,848 : x
  2. Step 2: Convert to fraction form
    1,570,800/2,356,200 = 388,848/x
  3. Step 3: Cross multiply
    1,570,800x = 2,356,200 × 388,848
  4. Step 4: Simplify right side
    1,570,800x = 916,203,657,600
  5. Step 5: Solve for x
    x = 916,203,657,600/1,570,800
  6. Step 6: Final answer
    x = 583,272

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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.