Home / 1,182,438.53-1,631,765.10-638,574.36

Finding the Fourth Proportional to 1,182,438.53, 1,631,765.10 and 638,574.36

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Solution

The fourth proportional to 1,182,438.53, 1,631,765.10 and 638,574.36 is: 881,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,438.53 : 1,631,765.10 = 638,574.36 : x
  2. Step 2: Convert to fraction form
    1,182,438.53/1,631,765.10 = 638,574.36/x
  3. Step 3: Cross multiply
    1,182,438.53x = 1,631,765.10 × 638,574.36
  4. Step 4: Simplify right side
    1,182,438.53x = 1,042,003,354,402.84
  5. Step 5: Solve for x
    x = 1,042,003,354,402.84/1,182,438.53
  6. Step 6: Final answer
    x = 881,232.58

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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.