Home / 746,612.48-1,118,134.56-409,145.60

Finding the Fourth Proportional to 746,612.48, 1,118,134.56 and 409,145.60

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Solution

The fourth proportional to 746,612.48, 1,118,134.56 and 409,145.60 is: 612,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,612.48 : 1,118,134.56 = 409,145.60 : x
  2. Step 2: Convert to fraction form
    746,612.48/1,118,134.56 = 409,145.60/x
  3. Step 3: Cross multiply
    746,612.48x = 1,118,134.56 × 409,145.60
  4. Step 4: Simplify right side
    746,612.48x = 457,479,835,431.94
  5. Step 5: Solve for x
    x = 457,479,835,431.94/746,612.48
  6. Step 6: Final answer
    x = 612,740.68

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Double scale
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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.