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Finding the Fourth Proportional to 604,021.80, 906,291.90 and 308,533.80

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Solution

The fourth proportional to 604,021.80, 906,291.90 and 308,533.80 is: 462,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,021.80 : 906,291.90 = 308,533.80 : x
  2. Step 2: Convert to fraction form
    604,021.80/906,291.90 = 308,533.80/x
  3. Step 3: Cross multiply
    604,021.80x = 906,291.90 × 308,533.80
  4. Step 4: Simplify right side
    604,021.80x = 279,621,683,816.22
  5. Step 5: Solve for x
    x = 279,621,683,816.22/604,021.80
  6. Step 6: Final answer
    x = 462,933.10

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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.