Home / 1,137,432.09-1,569,656.03-628,134.47

Finding the Fourth Proportional to 1,137,432.09, 1,569,656.03 and 628,134.47

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Solution

The fourth proportional to 1,137,432.09, 1,569,656.03 and 628,134.47 is: 866,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,432.09 : 1,569,656.03 = 628,134.47 : x
  2. Step 2: Convert to fraction form
    1,137,432.09/1,569,656.03 = 628,134.47/x
  3. Step 3: Cross multiply
    1,137,432.09x = 1,569,656.03 × 628,134.47
  4. Step 4: Simplify right side
    1,137,432.09x = 985,955,058,486.35
  5. Step 5: Solve for x
    x = 985,955,058,486.35/1,137,432.09
  6. Step 6: Final answer
    x = 866,825.43

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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.