Home / 986,749.78-1,361,718.70-534,040.66

Finding the Fourth Proportional to 986,749.78, 1,361,718.70 and 534,040.66

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Solution

The fourth proportional to 986,749.78, 1,361,718.70 and 534,040.66 is: 736,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,749.78 : 1,361,718.70 = 534,040.66 : x
  2. Step 2: Convert to fraction form
    986,749.78/1,361,718.70 = 534,040.66/x
  3. Step 3: Cross multiply
    986,749.78x = 1,361,718.70 × 534,040.66
  4. Step 4: Simplify right side
    986,749.78x = 727,213,153,282.34
  5. Step 5: Solve for x
    x = 727,213,153,282.34/986,749.78
  6. Step 6: Final answer
    x = 736,978.28

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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.