Home / 2,995,485.80-4,493,228.70-865,639.40

Finding the Fourth Proportional to 2,995,485.80, 4,493,228.70 and 865,639.40

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Solution

The fourth proportional to 2,995,485.80, 4,493,228.70 and 865,639.40 is: 1,298,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995,485.80 : 4,493,228.70 = 865,639.40 : x
  2. Step 2: Convert to fraction form
    2,995,485.80/4,493,228.70 = 865,639.40/x
  3. Step 3: Cross multiply
    2,995,485.80x = 4,493,228.70 × 865,639.40
  4. Step 4: Simplify right side
    2,995,485.80x = 3,889,515,795,930.78
  5. Step 5: Solve for x
    x = 3,889,515,795,930.78/2,995,485.80
  6. Step 6: Final answer
    x = 1,298,459.10

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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.