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Finding the Fourth Proportional to 525,063.60, 785,627.10 and 347,916.60

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Solution

The fourth proportional to 525,063.60, 785,627.10 and 347,916.60 is: 520,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,063.60 : 785,627.10 = 347,916.60 : x
  2. Step 2: Convert to fraction form
    525,063.60/785,627.10 = 347,916.60/x
  3. Step 3: Cross multiply
    525,063.60x = 785,627.10 × 347,916.60
  4. Step 4: Simplify right side
    525,063.60x = 273,332,709,499.86
  5. Step 5: Solve for x
    x = 273,332,709,499.86/525,063.60
  6. Step 6: Final answer
    x = 520,570.67

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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.