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Finding the Fourth Proportional to 560,415.40, 840,560.79 and 200,571.69

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Solution

The fourth proportional to 560,415.40, 840,560.79 and 200,571.69 is: 300,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,415.40 : 840,560.79 = 200,571.69 : x
  2. Step 2: Convert to fraction form
    560,415.40/840,560.79 = 200,571.69/x
  3. Step 3: Cross multiply
    560,415.40x = 840,560.79 × 200,571.69
  4. Step 4: Simplify right side
    560,415.40x = 168,592,700,974.07
  5. Step 5: Solve for x
    x = 168,592,700,974.07/560,415.40
  6. Step 6: Final answer
    x = 300,835.24

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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.