Home / 1,488,686.40-2,233,029.60-857,080.80

Finding the Fourth Proportional to 1,488,686.40, 2,233,029.60 and 857,080.80

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Solution

The fourth proportional to 1,488,686.40, 2,233,029.60 and 857,080.80 is: 1,285,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,686.40 : 2,233,029.60 = 857,080.80 : x
  2. Step 2: Convert to fraction form
    1,488,686.40/2,233,029.60 = 857,080.80/x
  3. Step 3: Cross multiply
    1,488,686.40x = 2,233,029.60 × 857,080.80
  4. Step 4: Simplify right side
    1,488,686.40x = 1,913,886,795,991.68
  5. Step 5: Solve for x
    x = 1,913,886,795,991.68/1,488,686.40
  6. Step 6: Final answer
    x = 1,285,621.20

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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.