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Finding the Fourth Proportional to 605,813.60, 906,970.80 and 369,617.60

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Solution

The fourth proportional to 605,813.60, 906,970.80 and 369,617.60 is: 553,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,813.60 : 906,970.80 = 369,617.60 : x
  2. Step 2: Convert to fraction form
    605,813.60/906,970.80 = 369,617.60/x
  3. Step 3: Cross multiply
    605,813.60x = 906,970.80 × 369,617.60
  4. Step 4: Simplify right side
    605,813.60x = 335,232,370,366.08
  5. Step 5: Solve for x
    x = 335,232,370,366.08/605,813.60
  6. Step 6: Final answer
    x = 553,358.94

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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.