Home / 824,508.39-1,242,378.74-678,029.67

Finding the Fourth Proportional to 824,508.39, 1,242,378.74 and 678,029.67

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Solution

The fourth proportional to 824,508.39, 1,242,378.74 and 678,029.67 is: 1,021,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,508.39 : 1,242,378.74 = 678,029.67 : x
  2. Step 2: Convert to fraction form
    824,508.39/1,242,378.74 = 678,029.67/x
  3. Step 3: Cross multiply
    824,508.39x = 1,242,378.74 × 678,029.67
  4. Step 4: Simplify right side
    824,508.39x = 842,369,648,792.29
  5. Step 5: Solve for x
    x = 842,369,648,792.29/824,508.39
  6. Step 6: Final answer
    x = 1,021,662.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.