Home / 620,949.33-931,430.07-340,313.49

Finding the Fourth Proportional to 620,949.33, 931,430.07 and 340,313.49

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Solution

The fourth proportional to 620,949.33, 931,430.07 and 340,313.49 is: 510,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,949.33 : 931,430.07 = 340,313.49 : x
  2. Step 2: Convert to fraction form
    620,949.33/931,430.07 = 340,313.49/x
  3. Step 3: Cross multiply
    620,949.33x = 931,430.07 × 340,313.49
  4. Step 4: Simplify right side
    620,949.33x = 316,978,217,812.64
  5. Step 5: Solve for x
    x = 316,978,217,812.64/620,949.33
  6. Step 6: Final answer
    x = 510,473.56

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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.