Home / 1,428,448.34-1,971,180.18-783,817.64

Finding the Fourth Proportional to 1,428,448.34, 1,971,180.18 and 783,817.64

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Solution

The fourth proportional to 1,428,448.34, 1,971,180.18 and 783,817.64 is: 1,081,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,448.34 : 1,971,180.18 = 783,817.64 : x
  2. Step 2: Convert to fraction form
    1,428,448.34/1,971,180.18 = 783,817.64/x
  3. Step 3: Cross multiply
    1,428,448.34x = 1,971,180.18 × 783,817.64
  4. Step 4: Simplify right side
    1,428,448.34x = 1,545,045,796,702.38
  5. Step 5: Solve for x
    x = 1,545,045,796,702.38/1,428,448.34
  6. Step 6: Final answer
    x = 1,081,625.25

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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.