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Finding the Fourth Proportional to 700,951.08, 967,311.54 and 399,145.08

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Solution

The fourth proportional to 700,951.08, 967,311.54 and 399,145.08 is: 550,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,951.08 : 967,311.54 = 399,145.08 : x
  2. Step 2: Convert to fraction form
    700,951.08/967,311.54 = 399,145.08/x
  3. Step 3: Cross multiply
    700,951.08x = 967,311.54 × 399,145.08
  4. Step 4: Simplify right side
    700,951.08x = 386,097,642,018.22
  5. Step 5: Solve for x
    x = 386,097,642,018.22/700,951.08
  6. Step 6: Final answer
    x = 550,819.67

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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.