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Finding the Fourth Proportional to 455,975.90, 683,963.85 and 350,999.90

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Solution

The fourth proportional to 455,975.90, 683,963.85 and 350,999.90 is: 526,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,975.90 : 683,963.85 = 350,999.90 : x
  2. Step 2: Convert to fraction form
    455,975.90/683,963.85 = 350,999.90/x
  3. Step 3: Cross multiply
    455,975.90x = 683,963.85 × 350,999.90
  4. Step 4: Simplify right side
    455,975.90x = 240,071,242,953.62
  5. Step 5: Solve for x
    x = 240,071,242,953.62/455,975.90
  6. Step 6: Final answer
    x = 526,499.85

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Similar ratio
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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.