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Finding the Fourth Proportional to 526,636.74, 726,740.73 and 300,355.14

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Solution

The fourth proportional to 526,636.74, 726,740.73 and 300,355.14 is: 414,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,636.74 : 726,740.73 = 300,355.14 : x
  2. Step 2: Convert to fraction form
    526,636.74/726,740.73 = 300,355.14/x
  3. Step 3: Cross multiply
    526,636.74x = 726,740.73 × 300,355.14
  4. Step 4: Simplify right side
    526,636.74x = 218,280,313,702.85
  5. Step 5: Solve for x
    x = 218,280,313,702.85/526,636.74
  6. Step 6: Final answer
    x = 414,479.84

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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.