Home / 421,988.01-581,738.40-300,919.34

Finding the Fourth Proportional to 421,988.01, 581,738.40 and 300,919.34

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Solution

The fourth proportional to 421,988.01, 581,738.40 and 300,919.34 is: 414,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,988.01 : 581,738.40 = 300,919.34 : x
  2. Step 2: Convert to fraction form
    421,988.01/581,738.40 = 300,919.34/x
  3. Step 3: Cross multiply
    421,988.01x = 581,738.40 × 300,919.34
  4. Step 4: Simplify right side
    421,988.01x = 175,056,332,471.96
  5. Step 5: Solve for x
    x = 175,056,332,471.96/421,988.01
  6. Step 6: Final answer
    x = 414,837.22

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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.