Home / 1,643,242.63-2,466,893.76-779,503.39

Finding the Fourth Proportional to 1,643,242.63, 2,466,893.76 and 779,503.39

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Solution

The fourth proportional to 1,643,242.63, 2,466,893.76 and 779,503.39 is: 1,170,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,242.63 : 2,466,893.76 = 779,503.39 : x
  2. Step 2: Convert to fraction form
    1,643,242.63/2,466,893.76 = 779,503.39/x
  3. Step 3: Cross multiply
    1,643,242.63x = 2,466,893.76 × 779,503.39
  4. Step 4: Simplify right side
    1,643,242.63x = 1,922,952,048,689.85
  5. Step 5: Solve for x
    x = 1,922,952,048,689.85/1,643,242.63
  6. Step 6: Final answer
    x = 1,170,217.97

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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.