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Finding the Fourth Proportional to 700,918.80, 967,266.96 and 378,628.80

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Solution

The fourth proportional to 700,918.80, 967,266.96 and 378,628.80 is: 522,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,918.80 : 967,266.96 = 378,628.80 : x
  2. Step 2: Convert to fraction form
    700,918.80/967,266.96 = 378,628.80/x
  3. Step 3: Cross multiply
    700,918.80x = 967,266.96 × 378,628.80
  4. Step 4: Simplify right side
    700,918.80x = 366,235,128,344.45
  5. Step 5: Solve for x
    x = 366,235,128,344.45/700,918.80
  6. Step 6: Final answer
    x = 522,507.21

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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.