Home / 481,631.76-664,973.28-300,416.40

Finding the Fourth Proportional to 481,631.76, 664,973.28 and 300,416.40

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Solution

The fourth proportional to 481,631.76, 664,973.28 and 300,416.40 is: 414,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,631.76 : 664,973.28 = 300,416.40 : x
  2. Step 2: Convert to fraction form
    481,631.76/664,973.28 = 300,416.40/x
  3. Step 3: Cross multiply
    481,631.76x = 664,973.28 × 300,416.40
  4. Step 4: Simplify right side
    481,631.76x = 199,768,878,873.79
  5. Step 5: Solve for x
    x = 199,768,878,873.79/481,631.76
  6. Step 6: Final answer
    x = 414,775.14

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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.