Home / 448,972.80-673,459.20-281,011.20

Finding the Fourth Proportional to 448,972.80, 673,459.20 and 281,011.20

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Solution

The fourth proportional to 448,972.80, 673,459.20 and 281,011.20 is: 421,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,972.80 : 673,459.20 = 281,011.20 : x
  2. Step 2: Convert to fraction form
    448,972.80/673,459.20 = 281,011.20/x
  3. Step 3: Cross multiply
    448,972.80x = 673,459.20 × 281,011.20
  4. Step 4: Simplify right side
    448,972.80x = 189,249,577,943.04
  5. Step 5: Solve for x
    x = 189,249,577,943.04/448,972.80
  6. Step 6: Final answer
    x = 421,516.80

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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.