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Finding the Fourth Proportional to 444,001.40, 666,002.10 and 407,259.80

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Solution

The fourth proportional to 444,001.40, 666,002.10 and 407,259.80 is: 610,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,001.40 : 666,002.10 = 407,259.80 : x
  2. Step 2: Convert to fraction form
    444,001.40/666,002.10 = 407,259.80/x
  3. Step 3: Cross multiply
    444,001.40x = 666,002.10 × 407,259.80
  4. Step 4: Simplify right side
    444,001.40x = 271,235,882,045.58
  5. Step 5: Solve for x
    x = 271,235,882,045.58/444,001.40
  6. Step 6: Final answer
    x = 610,889.70

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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.