Home / 1,345,948-2,018,915.50-1,278,672.64

Finding the Fourth Proportional to 1,345,948, 2,018,915.50 and 1,278,672.64

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Solution

The fourth proportional to 1,345,948, 2,018,915.50 and 1,278,672.64 is: 1,918,002.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,948 : 2,018,915.50 = 1,278,672.64 : x
  2. Step 2: Convert to fraction form
    1,345,948/2,018,915.50 = 1,278,672.64/x
  3. Step 3: Cross multiply
    1,345,948x = 2,018,915.50 × 1,278,672.64
  4. Step 4: Simplify right side
    1,345,948x = 2,581,532,012,321.92
  5. Step 5: Solve for x
    x = 2,581,532,012,321.92/1,345,948
  6. Step 6: Final answer
    x = 1,918,002.78

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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.