Home / 1,396,455.76-1,927,109.73-784,608.49

Finding the Fourth Proportional to 1,396,455.76, 1,927,109.73 and 784,608.49

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Solution

The fourth proportional to 1,396,455.76, 1,927,109.73 and 784,608.49 is: 1,082,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,455.76 : 1,927,109.73 = 784,608.49 : x
  2. Step 2: Convert to fraction form
    1,396,455.76/1,927,109.73 = 784,608.49/x
  3. Step 3: Cross multiply
    1,396,455.76x = 1,927,109.73 × 784,608.49
  4. Step 4: Simplify right side
    1,396,455.76x = 1,512,026,655,319.61
  5. Step 5: Solve for x
    x = 1,512,026,655,319.61/1,396,455.76
  6. Step 6: Final answer
    x = 1,082,760.16

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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.