Home / 771,403.12-1,157,409.26-238,965.67

Finding the Fourth Proportional to 771,403.12, 1,157,409.26 and 238,965.67

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Solution

The fourth proportional to 771,403.12, 1,157,409.26 and 238,965.67 is: 358,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,403.12 : 1,157,409.26 = 238,965.67 : x
  2. Step 2: Convert to fraction form
    771,403.12/1,157,409.26 = 238,965.67/x
  3. Step 3: Cross multiply
    771,403.12x = 1,157,409.26 × 238,965.67
  4. Step 4: Simplify right side
    771,403.12x = 276,581,079,280.10
  5. Step 5: Solve for x
    x = 276,581,079,280.10/771,403.12
  6. Step 6: Final answer
    x = 358,542.86

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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.