Home / 1,072,149.36-1,479,464.28-642,349.68

Finding the Fourth Proportional to 1,072,149.36, 1,479,464.28 and 642,349.68

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Solution

The fourth proportional to 1,072,149.36, 1,479,464.28 and 642,349.68 is: 886,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,149.36 : 1,479,464.28 = 642,349.68 : x
  2. Step 2: Convert to fraction form
    1,072,149.36/1,479,464.28 = 642,349.68/x
  3. Step 3: Cross multiply
    1,072,149.36x = 1,479,464.28 × 642,349.68
  4. Step 4: Simplify right side
    1,072,149.36x = 950,333,406,829.43
  5. Step 5: Solve for x
    x = 950,333,406,829.43/1,072,149.36
  6. Step 6: Final answer
    x = 886,381.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.