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Finding the Fourth Proportional to 554,562.40, 831,840.90 and 217,364.80

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Solution

The fourth proportional to 554,562.40, 831,840.90 and 217,364.80 is: 326,046.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,562.40 : 831,840.90 = 217,364.80 : x
  2. Step 2: Convert to fraction form
    554,562.40/831,840.90 = 217,364.80/x
  3. Step 3: Cross multiply
    554,562.40x = 831,840.90 × 217,364.80
  4. Step 4: Simplify right side
    554,562.40x = 180,812,930,860.32
  5. Step 5: Solve for x
    x = 180,812,930,860.32/554,562.40
  6. Step 6: Final answer
    x = 326,046.14

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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.