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Finding the Fourth Proportional to 621,453.22, 931,329.32 and 469,525.39

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Solution

The fourth proportional to 621,453.22, 931,329.32 and 469,525.39 is: 703,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,453.22 : 931,329.32 = 469,525.39 : x
  2. Step 2: Convert to fraction form
    621,453.22/931,329.32 = 469,525.39/x
  3. Step 3: Cross multiply
    621,453.22x = 931,329.32 × 469,525.39
  4. Step 4: Simplify right side
    621,453.22x = 437,282,757,515.49
  5. Step 5: Solve for x
    x = 437,282,757,515.49/621,453.22
  6. Step 6: Final answer
    x = 703,645.50

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Double scale
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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.