Home / 1,147,507.44-1,583,406.36-638,111.76

Finding the Fourth Proportional to 1,147,507.44, 1,583,406.36 and 638,111.76

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Solution

The fourth proportional to 1,147,507.44, 1,583,406.36 and 638,111.76 is: 880,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,507.44 : 1,583,406.36 = 638,111.76 : x
  2. Step 2: Convert to fraction form
    1,147,507.44/1,583,406.36 = 638,111.76/x
  3. Step 3: Cross multiply
    1,147,507.44x = 1,583,406.36 × 638,111.76
  4. Step 4: Simplify right side
    1,147,507.44x = 1,010,390,219,174.79
  5. Step 5: Solve for x
    x = 1,010,390,219,174.79/1,147,507.44
  6. Step 6: Final answer
    x = 880,508.64

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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.