Home / 1,671,349.98-2,308,626.51-1,382,129.78

Finding the Fourth Proportional to 1,671,349.98, 2,308,626.51 and 1,382,129.78

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Solution

The fourth proportional to 1,671,349.98, 2,308,626.51 and 1,382,129.78 is: 1,909,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,349.98 : 2,308,626.51 = 1,382,129.78 : x
  2. Step 2: Convert to fraction form
    1,671,349.98/2,308,626.51 = 1,382,129.78/x
  3. Step 3: Cross multiply
    1,671,349.98x = 2,308,626.51 × 1,382,129.78
  4. Step 4: Simplify right side
    1,671,349.98x = 3,190,821,454,402.85
  5. Step 5: Solve for x
    x = 3,190,821,454,402.85/1,671,349.98
  6. Step 6: Final answer
    x = 1,909,128.25

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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.