Home / 455,855.10-683,782.65-140,408.70

Finding the Fourth Proportional to 455,855.10, 683,782.65 and 140,408.70

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Solution

The fourth proportional to 455,855.10, 683,782.65 and 140,408.70 is: 210,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,855.10 : 683,782.65 = 140,408.70 : x
  2. Step 2: Convert to fraction form
    455,855.10/683,782.65 = 140,408.70/x
  3. Step 3: Cross multiply
    455,855.10x = 683,782.65 × 140,408.70
  4. Step 4: Simplify right side
    455,855.10x = 96,009,032,969.06
  5. Step 5: Solve for x
    x = 96,009,032,969.06/455,855.10
  6. Step 6: Final answer
    x = 210,613.05

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Similar ratio
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1.5x scale

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.