Home / 810,237.39-1,118,172.45-447,653.48

Finding the Fourth Proportional to 810,237.39, 1,118,172.45 and 447,653.48

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Solution

The fourth proportional to 810,237.39, 1,118,172.45 and 447,653.48 is: 617,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,237.39 : 1,118,172.45 = 447,653.48 : x
  2. Step 2: Convert to fraction form
    810,237.39/1,118,172.45 = 447,653.48/x
  3. Step 3: Cross multiply
    810,237.39x = 1,118,172.45 × 447,653.48
  4. Step 4: Simplify right side
    810,237.39x = 500,553,782,891.76
  5. Step 5: Solve for x
    x = 500,553,782,891.76/810,237.39
  6. Step 6: Final answer
    x = 617,786.58

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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.