Home / 1,182,557.16-1,631,928.56-638,692.80

Finding the Fourth Proportional to 1,182,557.16, 1,631,928.56 and 638,692.80

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Solution

The fourth proportional to 1,182,557.16, 1,631,928.56 and 638,692.80 is: 881,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,557.16 : 1,631,928.56 = 638,692.80 : x
  2. Step 2: Convert to fraction form
    1,182,557.16/1,631,928.56 = 638,692.80/x
  3. Step 3: Cross multiply
    1,182,557.16x = 1,631,928.56 × 638,692.80
  4. Step 4: Simplify right side
    1,182,557.16x = 1,042,301,021,386.37
  5. Step 5: Solve for x
    x = 1,042,301,021,386.37/1,182,557.16
  6. Step 6: Final answer
    x = 881,395.89

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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.