Home / 1,087,656.70-1,630,837.05-667,234.30

Finding the Fourth Proportional to 1,087,656.70, 1,630,837.05 and 667,234.30

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Solution

The fourth proportional to 1,087,656.70, 1,630,837.05 and 667,234.30 is: 1,000,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,656.70 : 1,630,837.05 = 667,234.30 : x
  2. Step 2: Convert to fraction form
    1,087,656.70/1,630,837.05 = 667,234.30/x
  3. Step 3: Cross multiply
    1,087,656.70x = 1,630,837.05 × 667,234.30
  4. Step 4: Simplify right side
    1,087,656.70x = 1,088,150,417,470.82
  5. Step 5: Solve for x
    x = 1,088,150,417,470.82/1,087,656.70
  6. Step 6: Final answer
    x = 1,000,453.93

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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.