Home / 458,284.32-631,966.32-305,278.56

Finding the Fourth Proportional to 458,284.32, 631,966.32 and 305,278.56

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Solution

The fourth proportional to 458,284.32, 631,966.32 and 305,278.56 is: 420,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,284.32 : 631,966.32 = 305,278.56 : x
  2. Step 2: Convert to fraction form
    458,284.32/631,966.32 = 305,278.56/x
  3. Step 3: Cross multiply
    458,284.32x = 631,966.32 × 305,278.56
  4. Step 4: Simplify right side
    458,284.32x = 192,925,768,138.10
  5. Step 5: Solve for x
    x = 192,925,768,138.10/458,284.32
  6. Step 6: Final answer
    x = 420,973.97

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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.