Home / 1,999,129.80-2,755,929.48-1,425,173.52

Finding the Fourth Proportional to 1,999,129.80, 2,755,929.48 and 1,425,173.52

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Solution

The fourth proportional to 1,999,129.80, 2,755,929.48 and 1,425,173.52 is: 1,964,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,129.80 : 2,755,929.48 = 1,425,173.52 : x
  2. Step 2: Convert to fraction form
    1,999,129.80/2,755,929.48 = 1,425,173.52/x
  3. Step 3: Cross multiply
    1,999,129.80x = 2,755,929.48 × 1,425,173.52
  4. Step 4: Simplify right side
    1,999,129.80x = 3,927,677,717,883.37
  5. Step 5: Solve for x
    x = 3,927,677,717,883.37/1,999,129.80
  6. Step 6: Final answer
    x = 1,964,693.70

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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.