Home / 895,138.80-1,235,321.79-487,255.50

Finding the Fourth Proportional to 895,138.80, 1,235,321.79 and 487,255.50

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Solution

The fourth proportional to 895,138.80, 1,235,321.79 and 487,255.50 is: 672,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,138.80 : 1,235,321.79 = 487,255.50 : x
  2. Step 2: Convert to fraction form
    895,138.80/1,235,321.79 = 487,255.50/x
  3. Step 3: Cross multiply
    895,138.80x = 1,235,321.79 × 487,255.50
  4. Step 4: Simplify right side
    895,138.80x = 601,917,334,620.14
  5. Step 5: Solve for x
    x = 601,917,334,620.14/895,138.80
  6. Step 6: Final answer
    x = 672,429.05

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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.