Home / 648,100.20-970,838.10-367,289.40

Finding the Fourth Proportional to 648,100.20, 970,838.10 and 367,289.40

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Solution

The fourth proportional to 648,100.20, 970,838.10 and 367,289.40 is: 550,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,100.20 : 970,838.10 = 367,289.40 : x
  2. Step 2: Convert to fraction form
    648,100.20/970,838.10 = 367,289.40/x
  3. Step 3: Cross multiply
    648,100.20x = 970,838.10 × 367,289.40
  4. Step 4: Simplify right side
    648,100.20x = 356,578,543,246.14
  5. Step 5: Solve for x
    x = 356,578,543,246.14/648,100.20
  6. Step 6: Final answer
    x = 550,190.45

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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.