Home / 2,990,947.20-4,486,420.80-1,928,065.20

Finding the Fourth Proportional to 2,990,947.20, 4,486,420.80 and 1,928,065.20

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Solution

The fourth proportional to 2,990,947.20, 4,486,420.80 and 1,928,065.20 is: 2,892,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,947.20 : 4,486,420.80 = 1,928,065.20 : x
  2. Step 2: Convert to fraction form
    2,990,947.20/4,486,420.80 = 1,928,065.20/x
  3. Step 3: Cross multiply
    2,990,947.20x = 4,486,420.80 × 1,928,065.20
  4. Step 4: Simplify right side
    2,990,947.20x = 8,650,111,817,036.16
  5. Step 5: Solve for x
    x = 8,650,111,817,036.16/2,990,947.20
  6. Step 6: Final answer
    x = 2,892,097.80

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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.