Home / 1,121,504.73-1,547,656.56-638,059.47

Finding the Fourth Proportional to 1,121,504.73, 1,547,656.56 and 638,059.47

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Solution

The fourth proportional to 1,121,504.73, 1,547,656.56 and 638,059.47 is: 880,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,504.73 : 1,547,656.56 = 638,059.47 : x
  2. Step 2: Convert to fraction form
    1,121,504.73/1,547,656.56 = 638,059.47/x
  3. Step 3: Cross multiply
    1,121,504.73x = 1,547,656.56 × 638,059.47
  4. Step 4: Simplify right side
    1,121,504.73x = 987,496,924,415.62
  5. Step 5: Solve for x
    x = 987,496,924,415.62/1,121,504.73
  6. Step 6: Final answer
    x = 880,510.71

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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.