Home / 1,155,001.73-1,593,912.47-638,728.79

Finding the Fourth Proportional to 1,155,001.73, 1,593,912.47 and 638,728.79

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Solution

The fourth proportional to 1,155,001.73, 1,593,912.47 and 638,728.79 is: 881,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,001.73 : 1,593,912.47 = 638,728.79 : x
  2. Step 2: Convert to fraction form
    1,155,001.73/1,593,912.47 = 638,728.79/x
  3. Step 3: Cross multiply
    1,155,001.73x = 1,593,912.47 × 638,728.79
  4. Step 4: Simplify right side
    1,155,001.73x = 1,018,077,772,165.81
  5. Step 5: Solve for x
    x = 1,018,077,772,165.81/1,155,001.73
  6. Step 6: Final answer
    x = 881,451.30

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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.