Home / 3,078,915.90-4,249,111.95-1,789,752.30

Finding the Fourth Proportional to 3,078,915.90, 4,249,111.95 and 1,789,752.30

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Solution

The fourth proportional to 3,078,915.90, 4,249,111.95 and 1,789,752.30 is: 2,469,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,915.90 : 4,249,111.95 = 1,789,752.30 : x
  2. Step 2: Convert to fraction form
    3,078,915.90/4,249,111.95 = 1,789,752.30/x
  3. Step 3: Cross multiply
    3,078,915.90x = 4,249,111.95 × 1,789,752.30
  4. Step 4: Simplify right side
    3,078,915.90x = 7,604,857,885,469.99
  5. Step 5: Solve for x
    x = 7,604,857,885,469.99/3,078,915.90
  6. Step 6: Final answer
    x = 2,469,979.09

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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.