Home / 1,211,250.94-1,817,157.51-412,539.40

Finding the Fourth Proportional to 1,211,250.94, 1,817,157.51 and 412,539.40

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Solution

The fourth proportional to 1,211,250.94, 1,817,157.51 and 412,539.40 is: 618,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,250.94 : 1,817,157.51 = 412,539.40 : x
  2. Step 2: Convert to fraction form
    1,211,250.94/1,817,157.51 = 412,539.40/x
  3. Step 3: Cross multiply
    1,211,250.94x = 1,817,157.51 × 412,539.40
  4. Step 4: Simplify right side
    1,211,250.94x = 749,649,068,880.89
  5. Step 5: Solve for x
    x = 749,649,068,880.89/1,211,250.94
  6. Step 6: Final answer
    x = 618,904.84

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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.