Home / 1,378,602.20-2,067,968.10-432,003.80

Finding the Fourth Proportional to 1,378,602.20, 2,067,968.10 and 432,003.80

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Solution

The fourth proportional to 1,378,602.20, 2,067,968.10 and 432,003.80 is: 648,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,602.20 : 2,067,968.10 = 432,003.80 : x
  2. Step 2: Convert to fraction form
    1,378,602.20/2,067,968.10 = 432,003.80/x
  3. Step 3: Cross multiply
    1,378,602.20x = 2,067,968.10 × 432,003.80
  4. Step 4: Simplify right side
    1,378,602.20x = 893,370,077,478.78
  5. Step 5: Solve for x
    x = 893,370,077,478.78/1,378,602.20
  6. Step 6: Final answer
    x = 648,026.01

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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.