Home / 1,369,721.10-1,890,270.78-757,863.90

Finding the Fourth Proportional to 1,369,721.10, 1,890,270.78 and 757,863.90

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Solution

The fourth proportional to 1,369,721.10, 1,890,270.78 and 757,863.90 is: 1,045,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,721.10 : 1,890,270.78 = 757,863.90 : x
  2. Step 2: Convert to fraction form
    1,369,721.10/1,890,270.78 = 757,863.90/x
  3. Step 3: Cross multiply
    1,369,721.10x = 1,890,270.78 × 757,863.90
  4. Step 4: Simplify right side
    1,369,721.10x = 1,432,567,985,386.84
  5. Step 5: Solve for x
    x = 1,432,567,985,386.84/1,369,721.10
  6. Step 6: Final answer
    x = 1,045,882.98

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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.