Home / 1,309,432.42-1,964,231.63-410,909.61

Finding the Fourth Proportional to 1,309,432.42, 1,964,231.63 and 410,909.61

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Solution

The fourth proportional to 1,309,432.42, 1,964,231.63 and 410,909.61 is: 616,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,432.42 : 1,964,231.63 = 410,909.61 : x
  2. Step 2: Convert to fraction form
    1,309,432.42/1,964,231.63 = 410,909.61/x
  3. Step 3: Cross multiply
    1,309,432.42x = 1,964,231.63 × 410,909.61
  4. Step 4: Simplify right side
    1,309,432.42x = 807,121,649,992.08
  5. Step 5: Solve for x
    x = 807,121,649,992.08/1,309,432.42
  6. Step 6: Final answer
    x = 616,390.46

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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.