Home / 620,861.04-857,022.30-362,821.77

Finding the Fourth Proportional to 620,861.04, 857,022.30 and 362,821.77

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Solution

The fourth proportional to 620,861.04, 857,022.30 and 362,821.77 is: 500,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,861.04 : 857,022.30 = 362,821.77 : x
  2. Step 2: Convert to fraction form
    620,861.04/857,022.30 = 362,821.77/x
  3. Step 3: Cross multiply
    620,861.04x = 857,022.30 × 362,821.77
  4. Step 4: Simplify right side
    620,861.04x = 310,946,347,815.47
  5. Step 5: Solve for x
    x = 310,946,347,815.47/620,861.04
  6. Step 6: Final answer
    x = 500,830.83

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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.