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Finding the Fourth Proportional to 554,470.20, 831,705.30 and 440,308.80

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Solution

The fourth proportional to 554,470.20, 831,705.30 and 440,308.80 is: 660,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,470.20 : 831,705.30 = 440,308.80 : x
  2. Step 2: Convert to fraction form
    554,470.20/831,705.30 = 440,308.80/x
  3. Step 3: Cross multiply
    554,470.20x = 831,705.30 × 440,308.80
  4. Step 4: Simplify right side
    554,470.20x = 366,207,162,596.64
  5. Step 5: Solve for x
    x = 366,207,162,596.64/554,470.20
  6. Step 6: Final answer
    x = 660,463.20

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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.