Home / 791,112.32-1,186,741.36-258,636.16

Finding the Fourth Proportional to 791,112.32, 1,186,741.36 and 258,636.16

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Solution

The fourth proportional to 791,112.32, 1,186,741.36 and 258,636.16 is: 387,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,112.32 : 1,186,741.36 = 258,636.16 : x
  2. Step 2: Convert to fraction form
    791,112.32/1,186,741.36 = 258,636.16/x
  3. Step 3: Cross multiply
    791,112.32x = 1,186,741.36 × 258,636.16
  4. Step 4: Simplify right side
    791,112.32x = 306,934,228,263.58
  5. Step 5: Solve for x
    x = 306,934,228,263.58/791,112.32
  6. Step 6: Final answer
    x = 387,978.07

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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.