Home / 990,336.78-1,366,675.74-560,607.48

Finding the Fourth Proportional to 990,336.78, 1,366,675.74 and 560,607.48

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Solution

The fourth proportional to 990,336.78, 1,366,675.74 and 560,607.48 is: 773,644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,336.78 : 1,366,675.74 = 560,607.48 : x
  2. Step 2: Convert to fraction form
    990,336.78/1,366,675.74 = 560,607.48/x
  3. Step 3: Cross multiply
    990,336.78x = 1,366,675.74 × 560,607.48
  4. Step 4: Simplify right side
    990,336.78x = 766,168,642,578.54
  5. Step 5: Solve for x
    x = 766,168,642,578.54/990,336.78
  6. Step 6: Final answer
    x = 773,644.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.