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Finding the Fourth Proportional to 510,794.18, 704,980.05 and 389,706.67

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Solution

The fourth proportional to 510,794.18, 704,980.05 and 389,706.67 is: 537,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,794.18 : 704,980.05 = 389,706.67 : x
  2. Step 2: Convert to fraction form
    510,794.18/704,980.05 = 389,706.67/x
  3. Step 3: Cross multiply
    510,794.18x = 704,980.05 × 389,706.67
  4. Step 4: Simplify right side
    510,794.18x = 274,735,427,121.76
  5. Step 5: Solve for x
    x = 274,735,427,121.76/510,794.18
  6. Step 6: Final answer
    x = 537,859.35

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1.5x scale

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.