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Finding the Fourth Proportional to 554,285.60, 829,352.40 and 394,730.40

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Solution

The fourth proportional to 554,285.60, 829,352.40 and 394,730.40 is: 590,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,285.60 : 829,352.40 = 394,730.40 : x
  2. Step 2: Convert to fraction form
    554,285.60/829,352.40 = 394,730.40/x
  3. Step 3: Cross multiply
    554,285.60x = 829,352.40 × 394,730.40
  4. Step 4: Simplify right side
    554,285.60x = 327,370,604,592.96
  5. Step 5: Solve for x
    x = 327,370,604,592.96/554,285.60
  6. Step 6: Final answer
    x = 590,617.19

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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.