Home / 855,068.47-1,179,707.97-492,485.07

Finding the Fourth Proportional to 855,068.47, 1,179,707.97 and 492,485.07

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Solution

The fourth proportional to 855,068.47, 1,179,707.97 and 492,485.07 is: 679,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,068.47 : 1,179,707.97 = 492,485.07 : x
  2. Step 2: Convert to fraction form
    855,068.47/1,179,707.97 = 492,485.07/x
  3. Step 3: Cross multiply
    855,068.47x = 1,179,707.97 × 492,485.07
  4. Step 4: Simplify right side
    855,068.47x = 580,988,562,185.01
  5. Step 5: Solve for x
    x = 580,988,562,185.01/855,068.47
  6. Step 6: Final answer
    x = 679,464.37

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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.