Home / 1,349,822.40-2,022,400.80-638,318.40

Finding the Fourth Proportional to 1,349,822.40, 2,022,400.80 and 638,318.40

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Solution

The fourth proportional to 1,349,822.40, 2,022,400.80 and 638,318.40 is: 956,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,822.40 : 2,022,400.80 = 638,318.40 : x
  2. Step 2: Convert to fraction form
    1,349,822.40/2,022,400.80 = 638,318.40/x
  3. Step 3: Cross multiply
    1,349,822.40x = 2,022,400.80 × 638,318.40
  4. Step 4: Simplify right side
    1,349,822.40x = 1,290,935,642,814.72
  5. Step 5: Solve for x
    x = 1,290,935,642,814.72/1,349,822.40
  6. Step 6: Final answer
    x = 956,374.44

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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.