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Finding the Fourth Proportional to 624,752.70, 862,315.83 and 560,979.42

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Solution

The fourth proportional to 624,752.70, 862,315.83 and 560,979.42 is: 774,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,752.70 : 862,315.83 = 560,979.42 : x
  2. Step 2: Convert to fraction form
    624,752.70/862,315.83 = 560,979.42/x
  3. Step 3: Cross multiply
    624,752.70x = 862,315.83 × 560,979.42
  4. Step 4: Simplify right side
    624,752.70x = 483,741,434,170.22
  5. Step 5: Solve for x
    x = 483,741,434,170.22/624,752.70
  6. Step 6: Final answer
    x = 774,292.67

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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.