Home / 1,297,983.79-1,947,160.22-399,500.40

Finding the Fourth Proportional to 1,297,983.79, 1,947,160.22 and 399,500.40

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Solution

The fourth proportional to 1,297,983.79, 1,947,160.22 and 399,500.40 is: 599,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,983.79 : 1,947,160.22 = 399,500.40 : x
  2. Step 2: Convert to fraction form
    1,297,983.79/1,947,160.22 = 399,500.40/x
  3. Step 3: Cross multiply
    1,297,983.79x = 1,947,160.22 × 399,500.40
  4. Step 4: Simplify right side
    1,297,983.79x = 777,891,292,058.44
  5. Step 5: Solve for x
    x = 777,891,292,058.44/1,297,983.79
  6. Step 6: Final answer
    x = 599,307.40

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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.