Home / 451,302.13-622,715.29-290,120.23

Finding the Fourth Proportional to 451,302.13, 622,715.29 and 290,120.23

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Solution

The fourth proportional to 451,302.13, 622,715.29 and 290,120.23 is: 400,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,302.13 : 622,715.29 = 290,120.23 : x
  2. Step 2: Convert to fraction form
    451,302.13/622,715.29 = 290,120.23/x
  3. Step 3: Cross multiply
    451,302.13x = 622,715.29 × 290,120.23
  4. Step 4: Simplify right side
    451,302.13x = 180,662,304,844.34
  5. Step 5: Solve for x
    x = 180,662,304,844.34/451,302.13
  6. Step 6: Final answer
    x = 400,313.43

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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.