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Finding the Fourth Proportional to 493,775.85, 740,663.78 and 414,059.70

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Solution

The fourth proportional to 493,775.85, 740,663.78 and 414,059.70 is: 621,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,775.85 : 740,663.78 = 414,059.70 : x
  2. Step 2: Convert to fraction form
    493,775.85/740,663.78 = 414,059.70/x
  3. Step 3: Cross multiply
    493,775.85x = 740,663.78 × 414,059.70
  4. Step 4: Simplify right side
    493,775.85x = 306,679,020,477.37
  5. Step 5: Solve for x
    x = 306,679,020,477.37/493,775.85
  6. Step 6: Final answer
    x = 621,089.55

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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.