Home / 1,901,145.60-2,852,150.40-639,100.80

Finding the Fourth Proportional to 1,901,145.60, 2,852,150.40 and 639,100.80

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Solution

The fourth proportional to 1,901,145.60, 2,852,150.40 and 639,100.80 is: 958,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,145.60 : 2,852,150.40 = 639,100.80 : x
  2. Step 2: Convert to fraction form
    1,901,145.60/2,852,150.40 = 639,100.80/x
  3. Step 3: Cross multiply
    1,901,145.60x = 2,852,150.40 × 639,100.80
  4. Step 4: Simplify right side
    1,901,145.60x = 1,822,811,602,360.32
  5. Step 5: Solve for x
    x = 1,822,811,602,360.32/1,901,145.60
  6. Step 6: Final answer
    x = 958,796.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.