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Finding the Fourth Proportional to 617,600.85, 851,612.36 and 402,341.73

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Solution

The fourth proportional to 617,600.85, 851,612.36 and 402,341.73 is: 554,790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,600.85 : 851,612.36 = 402,341.73 : x
  2. Step 2: Convert to fraction form
    617,600.85/851,612.36 = 402,341.73/x
  3. Step 3: Cross multiply
    617,600.85x = 851,612.36 × 402,341.73
  4. Step 4: Simplify right side
    617,600.85x = 342,639,190,211.78
  5. Step 5: Solve for x
    x = 342,639,190,211.78/617,600.85
  6. Step 6: Final answer
    x = 554,790.67

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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.