Home / 1,122,212.37-1,548,663.30-638,808.83

Finding the Fourth Proportional to 1,122,212.37, 1,548,663.30 and 638,808.83

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Solution

The fourth proportional to 1,122,212.37, 1,548,663.30 and 638,808.83 is: 881,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,212.37 : 1,548,663.30 = 638,808.83 : x
  2. Step 2: Convert to fraction form
    1,122,212.37/1,548,663.30 = 638,808.83/x
  3. Step 3: Cross multiply
    1,122,212.37x = 1,548,663.30 × 638,808.83
  4. Step 4: Simplify right side
    1,122,212.37x = 989,299,788,801.11
  5. Step 5: Solve for x
    x = 989,299,788,801.11/1,122,212.37
  6. Step 6: Final answer
    x = 881,562.00

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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.