Home / 1,938,387.78-2,674,915.65-1,078,925.94

Finding the Fourth Proportional to 1,938,387.78, 2,674,915.65 and 1,078,925.94

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Solution

The fourth proportional to 1,938,387.78, 2,674,915.65 and 1,078,925.94 is: 1,488,884.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,387.78 : 2,674,915.65 = 1,078,925.94 : x
  2. Step 2: Convert to fraction form
    1,938,387.78/2,674,915.65 = 1,078,925.94/x
  3. Step 3: Cross multiply
    1,938,387.78x = 2,674,915.65 × 1,078,925.94
  4. Step 4: Simplify right side
    1,938,387.78x = 2,886,035,882,096.96
  5. Step 5: Solve for x
    x = 2,886,035,882,096.96/1,938,387.78
  6. Step 6: Final answer
    x = 1,488,884.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.