Home / 2,912,316.88-4,368,180.07-782,124.20

Finding the Fourth Proportional to 2,912,316.88, 4,368,180.07 and 782,124.20

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Solution

The fourth proportional to 2,912,316.88, 4,368,180.07 and 782,124.20 is: 1,173,107.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,316.88 : 4,368,180.07 = 782,124.20 : x
  2. Step 2: Convert to fraction form
    2,912,316.88/4,368,180.07 = 782,124.20/x
  3. Step 3: Cross multiply
    2,912,316.88x = 4,368,180.07 × 782,124.20
  4. Step 4: Simplify right side
    2,912,316.88x = 3,416,459,351,669.83
  5. Step 5: Solve for x
    x = 3,416,459,351,669.83/2,912,316.88
  6. Step 6: Final answer
    x = 1,173,107.01

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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.