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Finding the Fourth Proportional to 800,007.80, 1,196,901.30 and 520,071.80

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Solution

The fourth proportional to 800,007.80, 1,196,901.30 and 520,071.80 is: 778,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,007.80 : 1,196,901.30 = 520,071.80 : x
  2. Step 2: Convert to fraction form
    800,007.80/1,196,901.30 = 520,071.80/x
  3. Step 3: Cross multiply
    800,007.80x = 1,196,901.30 × 520,071.80
  4. Step 4: Simplify right side
    800,007.80x = 622,474,613,513.34
  5. Step 5: Solve for x
    x = 622,474,613,513.34/800,007.80
  6. Step 6: Final answer
    x = 778,085.68

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1.5x scale

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.