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Finding the Fourth Proportional to 661,019.68, 912,486.22 and 446,450.37

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Solution

The fourth proportional to 661,019.68, 912,486.22 and 446,450.37 is: 616,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,019.68 : 912,486.22 = 446,450.37 : x
  2. Step 2: Convert to fraction form
    661,019.68/912,486.22 = 446,450.37/x
  3. Step 3: Cross multiply
    661,019.68x = 912,486.22 × 446,450.37
  4. Step 4: Simplify right side
    661,019.68x = 407,379,810,538.90
  5. Step 5: Solve for x
    x = 407,379,810,538.90/661,019.68
  6. Step 6: Final answer
    x = 616,289.99

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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.