Home / 2,142,768.64-3,214,060.80-646,816

Finding the Fourth Proportional to 2,142,768.64, 3,214,060.80 and 646,816

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Solution

The fourth proportional to 2,142,768.64, 3,214,060.80 and 646,816 is: 970,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,768.64 : 3,214,060.80 = 646,816 : x
  2. Step 2: Convert to fraction form
    2,142,768.64/3,214,060.80 = 646,816/x
  3. Step 3: Cross multiply
    2,142,768.64x = 3,214,060.80 × 646,816
  4. Step 4: Simplify right side
    2,142,768.64x = 2,078,905,950,412.80
  5. Step 5: Solve for x
    x = 2,078,905,950,412.80/2,142,768.64
  6. Step 6: Final answer
    x = 970,196.18

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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.