Home / 455,961.09-683,981.73-118,999.07

Finding the Fourth Proportional to 455,961.09, 683,981.73 and 118,999.07

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Solution

The fourth proportional to 455,961.09, 683,981.73 and 118,999.07 is: 178,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,961.09 : 683,981.73 = 118,999.07 : x
  2. Step 2: Convert to fraction form
    455,961.09/683,981.73 = 118,999.07/x
  3. Step 3: Cross multiply
    455,961.09x = 683,981.73 × 118,999.07
  4. Step 4: Simplify right side
    455,961.09x = 81,393,186,347.08
  5. Step 5: Solve for x
    x = 81,393,186,347.08/455,961.09
  6. Step 6: Final answer
    x = 178,509.06

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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.