Home / 661,019.06-912,485.36-446,449.76

Finding the Fourth Proportional to 661,019.06, 912,485.36 and 446,449.76

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Solution

The fourth proportional to 661,019.06, 912,485.36 and 446,449.76 is: 616,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,019.06 : 912,485.36 = 446,449.76 : x
  2. Step 2: Convert to fraction form
    661,019.06/912,485.36 = 446,449.76/x
  3. Step 3: Cross multiply
    661,019.06x = 912,485.36 × 446,449.76
  4. Step 4: Simplify right side
    661,019.06x = 407,378,863,180.84
  5. Step 5: Solve for x
    x = 407,378,863,180.84/661,019.06
  6. Step 6: Final answer
    x = 616,289.14

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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.