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Finding the Fourth Proportional to 492,067.80, 736,133.40 and 426,239.10

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Solution

The fourth proportional to 492,067.80, 736,133.40 and 426,239.10 is: 637,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,067.80 : 736,133.40 = 426,239.10 : x
  2. Step 2: Convert to fraction form
    492,067.80/736,133.40 = 426,239.10/x
  3. Step 3: Cross multiply
    492,067.80x = 736,133.40 × 426,239.10
  4. Step 4: Simplify right side
    492,067.80x = 313,768,837,895.94
  5. Step 5: Solve for x
    x = 313,768,837,895.94/492,067.80
  6. Step 6: Final answer
    x = 637,653.67

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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.