Home / 830,705.16-1,246,057.74-262,143.78

Finding the Fourth Proportional to 830,705.16, 1,246,057.74 and 262,143.78

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Solution

The fourth proportional to 830,705.16, 1,246,057.74 and 262,143.78 is: 393,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,705.16 : 1,246,057.74 = 262,143.78 : x
  2. Step 2: Convert to fraction form
    830,705.16/1,246,057.74 = 262,143.78/x
  3. Step 3: Cross multiply
    830,705.16x = 1,246,057.74 × 262,143.78
  4. Step 4: Simplify right side
    830,705.16x = 326,646,286,061.86
  5. Step 5: Solve for x
    x = 326,646,286,061.86/830,705.16
  6. Step 6: Final answer
    x = 393,215.67

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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.