Home / 2,990,437.20-4,485,655.80-1,856,696.40

Finding the Fourth Proportional to 2,990,437.20, 4,485,655.80 and 1,856,696.40

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Solution

The fourth proportional to 2,990,437.20, 4,485,655.80 and 1,856,696.40 is: 2,785,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,437.20 : 4,485,655.80 = 1,856,696.40 : x
  2. Step 2: Convert to fraction form
    2,990,437.20/4,485,655.80 = 1,856,696.40/x
  3. Step 3: Cross multiply
    2,990,437.20x = 4,485,655.80 × 1,856,696.40
  4. Step 4: Simplify right side
    2,990,437.20x = 8,328,500,975,499.12
  5. Step 5: Solve for x
    x = 8,328,500,975,499.12/2,990,437.20
  6. Step 6: Final answer
    x = 2,785,044.60

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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.