Home / 631,536.10-871,518.30-345,058.36

Finding the Fourth Proportional to 631,536.10, 871,518.30 and 345,058.36

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Solution

The fourth proportional to 631,536.10, 871,518.30 and 345,058.36 is: 476,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,536.10 : 871,518.30 = 345,058.36 : x
  2. Step 2: Convert to fraction form
    631,536.10/871,518.30 = 345,058.36/x
  3. Step 3: Cross multiply
    631,536.10x = 871,518.30 × 345,058.36
  4. Step 4: Simplify right side
    631,536.10x = 300,724,675,307.99
  5. Step 5: Solve for x
    x = 300,724,675,307.99/631,536.10
  6. Step 6: Final answer
    x = 476,179.71

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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.