Home / 1,247,107.10-1,870,695.50-405,658.85

Finding the Fourth Proportional to 1,247,107.10, 1,870,695.50 and 405,658.85

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Solution

The fourth proportional to 1,247,107.10, 1,870,695.50 and 405,658.85 is: 608,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,107.10 : 1,870,695.50 = 405,658.85 : x
  2. Step 2: Convert to fraction form
    1,247,107.10/1,870,695.50 = 405,658.85/x
  3. Step 3: Cross multiply
    1,247,107.10x = 1,870,695.50 × 405,658.85
  4. Step 4: Simplify right side
    1,247,107.10x = 758,864,173,848.40
  5. Step 5: Solve for x
    x = 758,864,173,848.40/1,247,107.10
  6. Step 6: Final answer
    x = 608,499.60

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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.