Home / 455,932.09-683,898.67-118,972.50

Finding the Fourth Proportional to 455,932.09, 683,898.67 and 118,972.50

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Solution

The fourth proportional to 455,932.09, 683,898.67 and 118,972.50 is: 178,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,932.09 : 683,898.67 = 118,972.50 : x
  2. Step 2: Convert to fraction form
    455,932.09/683,898.67 = 118,972.50/x
  3. Step 3: Cross multiply
    455,932.09x = 683,898.67 × 118,972.50
  4. Step 4: Simplify right side
    455,932.09x = 81,365,134,516.58
  5. Step 5: Solve for x
    x = 81,365,134,516.58/455,932.09
  6. Step 6: Final answer
    x = 178,458.89

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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.