Home / 842,707.06-1,264,186.64-310,187.54

Finding the Fourth Proportional to 842,707.06, 1,264,186.64 and 310,187.54

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Solution

The fourth proportional to 842,707.06, 1,264,186.64 and 310,187.54 is: 465,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,707.06 : 1,264,186.64 = 310,187.54 : x
  2. Step 2: Convert to fraction form
    842,707.06/1,264,186.64 = 310,187.54/x
  3. Step 3: Cross multiply
    842,707.06x = 1,264,186.64 × 310,187.54
  4. Step 4: Simplify right side
    842,707.06x = 392,134,943,962.47
  5. Step 5: Solve for x
    x = 392,134,943,962.47/842,707.06
  6. Step 6: Final answer
    x = 465,327.71

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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.