Home / 1,122,158.70-1,548,588.84-638,754.90

Finding the Fourth Proportional to 1,122,158.70, 1,548,588.84 and 638,754.90

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Solution

The fourth proportional to 1,122,158.70, 1,548,588.84 and 638,754.90 is: 881,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,158.70 : 1,548,588.84 = 638,754.90 : x
  2. Step 2: Convert to fraction form
    1,122,158.70/1,548,588.84 = 638,754.90/x
  3. Step 3: Cross multiply
    1,122,158.70x = 1,548,588.84 × 638,754.90
  4. Step 4: Simplify right side
    1,122,158.70x = 989,168,709,635.32
  5. Step 5: Solve for x
    x = 989,168,709,635.32/1,122,158.70
  6. Step 6: Final answer
    x = 881,487.36

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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.