Home / 771,827.40-1,157,741.10-210,861.90

Finding the Fourth Proportional to 771,827.40, 1,157,741.10 and 210,861.90

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Solution

The fourth proportional to 771,827.40, 1,157,741.10 and 210,861.90 is: 316,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,827.40 : 1,157,741.10 = 210,861.90 : x
  2. Step 2: Convert to fraction form
    771,827.40/1,157,741.10 = 210,861.90/x
  3. Step 3: Cross multiply
    771,827.40x = 1,157,741.10 × 210,861.90
  4. Step 4: Simplify right side
    771,827.40x = 244,123,488,054.09
  5. Step 5: Solve for x
    x = 244,123,488,054.09/771,827.40
  6. Step 6: Final answer
    x = 316,292.85

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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.