Home / 999,293.25-1,379,035.63-540,416.61

Finding the Fourth Proportional to 999,293.25, 1,379,035.63 and 540,416.61

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Solution

The fourth proportional to 999,293.25, 1,379,035.63 and 540,416.61 is: 745,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,293.25 : 1,379,035.63 = 540,416.61 : x
  2. Step 2: Convert to fraction form
    999,293.25/1,379,035.63 = 540,416.61/x
  3. Step 3: Cross multiply
    999,293.25x = 1,379,035.63 × 540,416.61
  4. Step 4: Simplify right side
    999,293.25x = 745,253,760,909.34
  5. Step 5: Solve for x
    x = 745,253,760,909.34/999,293.25
  6. Step 6: Final answer
    x = 745,780.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.