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Finding the Fourth Proportional to 340,556.50, 510,047.43 and 328,746.70

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Solution

The fourth proportional to 340,556.50, 510,047.43 and 328,746.70 is: 492,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,556.50 : 510,047.43 = 328,746.70 : x
  2. Step 2: Convert to fraction form
    340,556.50/510,047.43 = 328,746.70/x
  3. Step 3: Cross multiply
    340,556.50x = 510,047.43 × 328,746.70
  4. Step 4: Simplify right side
    340,556.50x = 167,676,409,455.98
  5. Step 5: Solve for x
    x = 167,676,409,455.98/340,556.50
  6. Step 6: Final answer
    x = 492,360.03

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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.