Home / 1,377,840.48-2,065,645.44-430,723.68

Finding the Fourth Proportional to 1,377,840.48, 2,065,645.44 and 430,723.68

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Solution

The fourth proportional to 1,377,840.48, 2,065,645.44 and 430,723.68 is: 645,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,840.48 : 2,065,645.44 = 430,723.68 : x
  2. Step 2: Convert to fraction form
    1,377,840.48/2,065,645.44 = 430,723.68/x
  3. Step 3: Cross multiply
    1,377,840.48x = 2,065,645.44 × 430,723.68
  4. Step 4: Simplify right side
    1,377,840.48x = 889,722,405,492.02
  5. Step 5: Solve for x
    x = 889,722,405,492.02/1,377,840.48
  6. Step 6: Final answer
    x = 645,736.87

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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.