Home / 867,072.40-1,300,090.20-447,168.40

Finding the Fourth Proportional to 867,072.40, 1,300,090.20 and 447,168.40

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Solution

The fourth proportional to 867,072.40, 1,300,090.20 and 447,168.40 is: 670,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,072.40 : 1,300,090.20 = 447,168.40 : x
  2. Step 2: Convert to fraction form
    867,072.40/1,300,090.20 = 447,168.40/x
  3. Step 3: Cross multiply
    867,072.40x = 1,300,090.20 × 447,168.40
  4. Step 4: Simplify right side
    867,072.40x = 581,359,254,589.68
  5. Step 5: Solve for x
    x = 581,359,254,589.68/867,072.40
  6. Step 6: Final answer
    x = 670,485.25

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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.