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Finding the Fourth Proportional to 455,929.34, 683,894.55 and 118,969.74

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Solution

The fourth proportional to 455,929.34, 683,894.55 and 118,969.74 is: 178,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,929.34 : 683,894.55 = 118,969.74 : x
  2. Step 2: Convert to fraction form
    455,929.34/683,894.55 = 118,969.74/x
  3. Step 3: Cross multiply
    455,929.34x = 683,894.55 × 118,969.74
  4. Step 4: Simplify right side
    455,929.34x = 81,362,758,213.23
  5. Step 5: Solve for x
    x = 81,362,758,213.23/455,929.34
  6. Step 6: Final answer
    x = 178,454.75

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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.