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Finding the Fourth Proportional to 604,936.80, 906,368.40 and 394,466.40

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Solution

The fourth proportional to 604,936.80, 906,368.40 and 394,466.40 is: 591,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,936.80 : 906,368.40 = 394,466.40 : x
  2. Step 2: Convert to fraction form
    604,936.80/906,368.40 = 394,466.40/x
  3. Step 3: Cross multiply
    604,936.80x = 906,368.40 × 394,466.40
  4. Step 4: Simplify right side
    604,936.80x = 357,531,879,821.76
  5. Step 5: Solve for x
    x = 357,531,879,821.76/604,936.80
  6. Step 6: Final answer
    x = 591,023.52

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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.