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Finding the Fourth Proportional to 2,669,720, 4,004,537.56 and 647,980.60

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Solution

The fourth proportional to 2,669,720, 4,004,537.56 and 647,980.60 is: 971,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669,720 : 4,004,537.56 = 647,980.60 : x
  2. Step 2: Convert to fraction form
    2,669,720/4,004,537.56 = 647,980.60/x
  3. Step 3: Cross multiply
    2,669,720x = 4,004,537.56 × 647,980.60
  4. Step 4: Simplify right side
    2,669,720x = 2,594,862,650,851.34
  5. Step 5: Solve for x
    x = 2,594,862,650,851.34/2,669,720
  6. Step 6: Final answer
    x = 971,960.60

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1.5x scale

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.