Home / 1,336,400.10-2,005,059.15-389,909.70

Finding the Fourth Proportional to 1,336,400.10, 2,005,059.15 and 389,909.70

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Solution

The fourth proportional to 1,336,400.10, 2,005,059.15 and 389,909.70 is: 584,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,400.10 : 2,005,059.15 = 389,909.70 : x
  2. Step 2: Convert to fraction form
    1,336,400.10/2,005,059.15 = 389,909.70/x
  3. Step 3: Cross multiply
    1,336,400.10x = 2,005,059.15 × 389,909.70
  4. Step 4: Simplify right side
    1,336,400.10x = 781,792,011,658.76
  5. Step 5: Solve for x
    x = 781,792,011,658.76/1,336,400.10
  6. Step 6: Final answer
    x = 584,998.47

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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.