Home / 1,129,805.37-1,559,207.75-620,513.01

Finding the Fourth Proportional to 1,129,805.37, 1,559,207.75 and 620,513.01

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Solution

The fourth proportional to 1,129,805.37, 1,559,207.75 and 620,513.01 is: 856,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,805.37 : 1,559,207.75 = 620,513.01 : x
  2. Step 2: Convert to fraction form
    1,129,805.37/1,559,207.75 = 620,513.01/x
  3. Step 3: Cross multiply
    1,129,805.37x = 1,559,207.75 × 620,513.01
  4. Step 4: Simplify right side
    1,129,805.37x = 967,508,691,065.26
  5. Step 5: Solve for x
    x = 967,508,691,065.26/1,129,805.37
  6. Step 6: Final answer
    x = 856,349.88

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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.