Home / 1,121,773.48-1,547,993.60-638,293.39

Finding the Fourth Proportional to 1,121,773.48, 1,547,993.60 and 638,293.39

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Solution

The fourth proportional to 1,121,773.48, 1,547,993.60 and 638,293.39 is: 880,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,773.48 : 1,547,993.60 = 638,293.39 : x
  2. Step 2: Convert to fraction form
    1,121,773.48/1,547,993.60 = 638,293.39/x
  3. Step 3: Cross multiply
    1,121,773.48x = 1,547,993.60 × 638,293.39
  4. Step 4: Simplify right side
    1,121,773.48x = 988,074,077,974.45
  5. Step 5: Solve for x
    x = 988,074,077,974.45/1,121,773.48
  6. Step 6: Final answer
    x = 880,814.26

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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.