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Finding the Fourth Proportional to 646,783.66, 892,588.98 and 360,303.67

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Solution

The fourth proportional to 646,783.66, 892,588.98 and 360,303.67 is: 497,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,783.66 : 892,588.98 = 360,303.67 : x
  2. Step 2: Convert to fraction form
    646,783.66/892,588.98 = 360,303.67/x
  3. Step 3: Cross multiply
    646,783.66x = 892,588.98 × 360,303.67
  4. Step 4: Simplify right side
    646,783.66x = 321,603,085,295.56
  5. Step 5: Solve for x
    x = 321,603,085,295.56/646,783.66
  6. Step 6: Final answer
    x = 497,234.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.