Home / 1,112,130.35-1,534,806.07-628,740.48

Finding the Fourth Proportional to 1,112,130.35, 1,534,806.07 and 628,740.48

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Solution

The fourth proportional to 1,112,130.35, 1,534,806.07 and 628,740.48 is: 867,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,130.35 : 1,534,806.07 = 628,740.48 : x
  2. Step 2: Convert to fraction form
    1,112,130.35/1,534,806.07 = 628,740.48/x
  3. Step 3: Cross multiply
    1,112,130.35x = 1,534,806.07 × 628,740.48
  4. Step 4: Simplify right side
    1,112,130.35x = 964,994,704,245.77
  5. Step 5: Solve for x
    x = 964,994,704,245.77/1,112,130.35
  6. Step 6: Final answer
    x = 867,699.28

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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.