Home / 455,965.40-683,883.30-140,454.20

Finding the Fourth Proportional to 455,965.40, 683,883.30 and 140,454.20

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Solution

The fourth proportional to 455,965.40, 683,883.30 and 140,454.20 is: 210,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,965.40 : 683,883.30 = 140,454.20 : x
  2. Step 2: Convert to fraction form
    455,965.40/683,883.30 = 140,454.20/x
  3. Step 3: Cross multiply
    455,965.40x = 683,883.30 × 140,454.20
  4. Step 4: Simplify right side
    455,965.40x = 96,054,281,794.86
  5. Step 5: Solve for x
    x = 96,054,281,794.86/455,965.40
  6. Step 6: Final answer
    x = 210,661.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.