Home / 738,348.24-1,018,921-398,816.52

Finding the Fourth Proportional to 738,348.24, 1,018,921 and 398,816.52

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Solution

The fourth proportional to 738,348.24, 1,018,921 and 398,816.52 is: 550,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,348.24 : 1,018,921 = 398,816.52 : x
  2. Step 2: Convert to fraction form
    738,348.24/1,018,921 = 398,816.52/x
  3. Step 3: Cross multiply
    738,348.24x = 1,018,921 × 398,816.52
  4. Step 4: Simplify right side
    738,348.24x = 406,362,527,374.92
  5. Step 5: Solve for x
    x = 406,362,527,374.92/738,348.24
  6. Step 6: Final answer
    x = 550,367.03

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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.