Home / 1,122,159.70-1,548,590.22-638,755.90

Finding the Fourth Proportional to 1,122,159.70, 1,548,590.22 and 638,755.90

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Solution

The fourth proportional to 1,122,159.70, 1,548,590.22 and 638,755.90 is: 881,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,159.70 : 1,548,590.22 = 638,755.90 : x
  2. Step 2: Convert to fraction form
    1,122,159.70/1,548,590.22 = 638,755.90/x
  3. Step 3: Cross multiply
    1,122,159.70x = 1,548,590.22 × 638,755.90
  4. Step 4: Simplify right side
    1,122,159.70x = 989,171,139,707.30
  5. Step 5: Solve for x
    x = 989,171,139,707.30/1,122,159.70
  6. Step 6: Final answer
    x = 881,488.74

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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.