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Finding the Fourth Proportional to 630,115.98, 869,611.86 and 358,269.54

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Solution

The fourth proportional to 630,115.98, 869,611.86 and 358,269.54 is: 494,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,115.98 : 869,611.86 = 358,269.54 : x
  2. Step 2: Convert to fraction form
    630,115.98/869,611.86 = 358,269.54/x
  3. Step 3: Cross multiply
    630,115.98x = 869,611.86 × 358,269.54
  4. Step 4: Simplify right side
    630,115.98x = 311,555,441,060.74
  5. Step 5: Solve for x
    x = 311,555,441,060.74/630,115.98
  6. Step 6: Final answer
    x = 494,441.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.