Home / 1,406,789.88-1,940,298.84-1,210,889.76

Finding the Fourth Proportional to 1,406,789.88, 1,940,298.84 and 1,210,889.76

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Solution

The fourth proportional to 1,406,789.88, 1,940,298.84 and 1,210,889.76 is: 1,670,105.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,789.88 : 1,940,298.84 = 1,210,889.76 : x
  2. Step 2: Convert to fraction form
    1,406,789.88/1,940,298.84 = 1,210,889.76/x
  3. Step 3: Cross multiply
    1,406,789.88x = 1,940,298.84 × 1,210,889.76
  4. Step 4: Simplify right side
    1,406,789.88x = 2,349,487,996,695.88
  5. Step 5: Solve for x
    x = 2,349,487,996,695.88/1,406,789.88
  6. Step 6: Final answer
    x = 1,670,105.84

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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.