Home / 455,934.90-683,837.55-140,423.70

Finding the Fourth Proportional to 455,934.90, 683,837.55 and 140,423.70

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Solution

The fourth proportional to 455,934.90, 683,837.55 and 140,423.70 is: 210,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,934.90 : 683,837.55 = 140,423.70 : x
  2. Step 2: Convert to fraction form
    455,934.90/683,837.55 = 140,423.70/x
  3. Step 3: Cross multiply
    455,934.90x = 683,837.55 × 140,423.70
  4. Step 4: Simplify right side
    455,934.90x = 96,026,998,969.94
  5. Step 5: Solve for x
    x = 96,026,998,969.94/455,934.90
  6. Step 6: Final answer
    x = 210,615.59

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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.