Home / 1,182,431.21-1,631,755.01-638,566.95

Finding the Fourth Proportional to 1,182,431.21, 1,631,755.01 and 638,566.95

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Solution

The fourth proportional to 1,182,431.21, 1,631,755.01 and 638,566.95 is: 881,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,431.21 : 1,631,755.01 = 638,566.95 : x
  2. Step 2: Convert to fraction form
    1,182,431.21/1,631,755.01 = 638,566.95/x
  3. Step 3: Cross multiply
    1,182,431.21x = 1,631,755.01 × 638,566.95
  4. Step 4: Simplify right side
    1,182,431.21x = 1,041,984,809,728.62
  5. Step 5: Solve for x
    x = 1,041,984,809,728.62/1,182,431.21
  6. Step 6: Final answer
    x = 881,222.35

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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.