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Finding the Fourth Proportional to 693,674.12, 956,986.98 and 549,857

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Solution

The fourth proportional to 693,674.12, 956,986.98 and 549,857 is: 758,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,674.12 : 956,986.98 = 549,857 : x
  2. Step 2: Convert to fraction form
    693,674.12/956,986.98 = 549,857/x
  3. Step 3: Cross multiply
    693,674.12x = 956,986.98 × 549,857
  4. Step 4: Simplify right side
    693,674.12x = 526,205,989,861.86
  5. Step 5: Solve for x
    x = 526,205,989,861.86/693,674.12
  6. Step 6: Final answer
    x = 758,578.09

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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.