Home / 1,115,123.60-1,538,862.36-605,830.16

Finding the Fourth Proportional to 1,115,123.60, 1,538,862.36 and 605,830.16

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Solution

The fourth proportional to 1,115,123.60, 1,538,862.36 and 605,830.16 is: 836,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,123.60 : 1,538,862.36 = 605,830.16 : x
  2. Step 2: Convert to fraction form
    1,115,123.60/1,538,862.36 = 605,830.16/x
  3. Step 3: Cross multiply
    1,115,123.60x = 1,538,862.36 × 605,830.16
  4. Step 4: Simplify right side
    1,115,123.60x = 932,289,229,776.78
  5. Step 5: Solve for x
    x = 932,289,229,776.78/1,115,123.60
  6. Step 6: Final answer
    x = 836,041.16

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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.