Home / 879,581.70-1,319,498.33-280,549.67

Finding the Fourth Proportional to 879,581.70, 1,319,498.33 and 280,549.67

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Solution

The fourth proportional to 879,581.70, 1,319,498.33 and 280,549.67 is: 420,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,581.70 : 1,319,498.33 = 280,549.67 : x
  2. Step 2: Convert to fraction form
    879,581.70/1,319,498.33 = 280,549.67/x
  3. Step 3: Cross multiply
    879,581.70x = 1,319,498.33 × 280,549.67
  4. Step 4: Simplify right side
    879,581.70x = 370,184,813,046.81
  5. Step 5: Solve for x
    x = 370,184,813,046.81/879,581.70
  6. Step 6: Final answer
    x = 420,864.61

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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.