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Finding the Fourth Proportional to 554,015.64, 830,843.54 and 212,441.10

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Solution

The fourth proportional to 554,015.64, 830,843.54 and 212,441.10 is: 318,592.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,015.64 : 830,843.54 = 212,441.10 : x
  2. Step 2: Convert to fraction form
    554,015.64/830,843.54 = 212,441.10/x
  3. Step 3: Cross multiply
    554,015.64x = 830,843.54 × 212,441.10
  4. Step 4: Simplify right side
    554,015.64x = 176,505,314,503.29
  5. Step 5: Solve for x
    x = 176,505,314,503.29/554,015.64
  6. Step 6: Final answer
    x = 318,592.66

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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.