Home / 447,112.80-670,669.20-412,898.40

Finding the Fourth Proportional to 447,112.80, 670,669.20 and 412,898.40

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Solution

The fourth proportional to 447,112.80, 670,669.20 and 412,898.40 is: 619,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,112.80 : 670,669.20 = 412,898.40 : x
  2. Step 2: Convert to fraction form
    447,112.80/670,669.20 = 412,898.40/x
  3. Step 3: Cross multiply
    447,112.80x = 670,669.20 × 412,898.40
  4. Step 4: Simplify right side
    447,112.80x = 276,918,239,609.28
  5. Step 5: Solve for x
    x = 276,918,239,609.28/447,112.80
  6. Step 6: Final answer
    x = 619,347.60

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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.