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Finding the Fourth Proportional to 444,003.34, 612,315.76 and 290,985.80

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Solution

The fourth proportional to 444,003.34, 612,315.76 and 290,985.80 is: 401,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,003.34 : 612,315.76 = 290,985.80 : x
  2. Step 2: Convert to fraction form
    444,003.34/612,315.76 = 290,985.80/x
  3. Step 3: Cross multiply
    444,003.34x = 612,315.76 × 290,985.80
  4. Step 4: Simplify right side
    444,003.34x = 178,175,191,276.21
  5. Step 5: Solve for x
    x = 178,175,191,276.21/444,003.34
  6. Step 6: Final answer
    x = 401,292.46

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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.