Home / 1,285,100.40-1,927,067.40-486,116.40

Finding the Fourth Proportional to 1,285,100.40, 1,927,067.40 and 486,116.40

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Solution

The fourth proportional to 1,285,100.40, 1,927,067.40 and 486,116.40 is: 728,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,100.40 : 1,927,067.40 = 486,116.40 : x
  2. Step 2: Convert to fraction form
    1,285,100.40/1,927,067.40 = 486,116.40/x
  3. Step 3: Cross multiply
    1,285,100.40x = 1,927,067.40 × 486,116.40
  4. Step 4: Simplify right side
    1,285,100.40x = 936,779,067,045.36
  5. Step 5: Solve for x
    x = 936,779,067,045.36/1,285,100.40
  6. Step 6: Final answer
    x = 728,953.99

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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.