Home / 688,438.61-1,033,062.44-289,048.67

Finding the Fourth Proportional to 688,438.61, 1,033,062.44 and 289,048.67

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Solution

The fourth proportional to 688,438.61, 1,033,062.44 and 289,048.67 is: 433,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,438.61 : 1,033,062.44 = 289,048.67 : x
  2. Step 2: Convert to fraction form
    688,438.61/1,033,062.44 = 289,048.67/x
  3. Step 3: Cross multiply
    688,438.61x = 1,033,062.44 × 289,048.67
  4. Step 4: Simplify right side
    688,438.61x = 298,605,324,308.96
  5. Step 5: Solve for x
    x = 298,605,324,308.96/688,438.61
  6. Step 6: Final answer
    x = 433,742.85

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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.