Home / 865,161.38-1,297,741.80-630,000.56

Finding the Fourth Proportional to 865,161.38, 1,297,741.80 and 630,000.56

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Solution

The fourth proportional to 865,161.38, 1,297,741.80 and 630,000.56 is: 945,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,161.38 : 1,297,741.80 = 630,000.56 : x
  2. Step 2: Convert to fraction form
    865,161.38/1,297,741.80 = 630,000.56/x
  3. Step 3: Cross multiply
    865,161.38x = 1,297,741.80 × 630,000.56
  4. Step 4: Simplify right side
    865,161.38x = 817,578,060,735.41
  5. Step 5: Solve for x
    x = 817,578,060,735.41/865,161.38
  6. Step 6: Final answer
    x = 945,000.64

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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.