Home / 2,142,760.64-3,214,048.80-646,808

Finding the Fourth Proportional to 2,142,760.64, 3,214,048.80 and 646,808

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Solution

The fourth proportional to 2,142,760.64, 3,214,048.80 and 646,808 is: 970,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,760.64 : 3,214,048.80 = 646,808 : x
  2. Step 2: Convert to fraction form
    2,142,760.64/3,214,048.80 = 646,808/x
  3. Step 3: Cross multiply
    2,142,760.64x = 3,214,048.80 × 646,808
  4. Step 4: Simplify right side
    2,142,760.64x = 2,078,872,476,230.40
  5. Step 5: Solve for x
    x = 2,078,872,476,230.40/2,142,760.64
  6. Step 6: Final answer
    x = 970,184.18

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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.