Home / 3,116,643.90-4,678,902.45-1,678,472.70

Finding the Fourth Proportional to 3,116,643.90, 4,678,902.45 and 1,678,472.70

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Solution

The fourth proportional to 3,116,643.90, 4,678,902.45 and 1,678,472.70 is: 2,519,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116,643.90 : 4,678,902.45 = 1,678,472.70 : x
  2. Step 2: Convert to fraction form
    3,116,643.90/4,678,902.45 = 1,678,472.70/x
  3. Step 3: Cross multiply
    3,116,643.90x = 4,678,902.45 × 1,678,472.70
  4. Step 4: Simplify right side
    3,116,643.90x = 7,853,410,028,288.12
  5. Step 5: Solve for x
    x = 7,853,410,028,288.12/3,116,643.90
  6. Step 6: Final answer
    x = 2,519,829.11

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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.