Home / 764,211-1,146,454.86-314,686.72

Finding the Fourth Proportional to 764,211, 1,146,454.86 and 314,686.72

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Solution

The fourth proportional to 764,211, 1,146,454.86 and 314,686.72 is: 472,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,211 : 1,146,454.86 = 314,686.72 : x
  2. Step 2: Convert to fraction form
    764,211/1,146,454.86 = 314,686.72/x
  3. Step 3: Cross multiply
    764,211x = 1,146,454.86 × 314,686.72
  4. Step 4: Simplify right side
    764,211x = 360,774,119,521.46
  5. Step 5: Solve for x
    x = 360,774,119,521.46/764,211
  6. Step 6: Final answer
    x = 472,087.05

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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.