Home / 455,930.09-683,895.67-118,970.50

Finding the Fourth Proportional to 455,930.09, 683,895.67 and 118,970.50

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Solution

The fourth proportional to 455,930.09, 683,895.67 and 118,970.50 is: 178,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,930.09 : 683,895.67 = 118,970.50 : x
  2. Step 2: Convert to fraction form
    455,930.09/683,895.67 = 118,970.50/x
  3. Step 3: Cross multiply
    455,930.09x = 683,895.67 × 118,970.50
  4. Step 4: Simplify right side
    455,930.09x = 81,363,406,388.26
  5. Step 5: Solve for x
    x = 81,363,406,388.26/455,930.09
  6. Step 6: Final answer
    x = 178,455.88

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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.