Home / 810,404.07-1,118,424.96-447,898.71

Finding the Fourth Proportional to 810,404.07, 1,118,424.96 and 447,898.71

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Solution

The fourth proportional to 810,404.07, 1,118,424.96 and 447,898.71 is: 618,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,404.07 : 1,118,424.96 = 447,898.71 : x
  2. Step 2: Convert to fraction form
    810,404.07/1,118,424.96 = 447,898.71/x
  3. Step 3: Cross multiply
    810,404.07x = 1,118,424.96 × 447,898.71
  4. Step 4: Simplify right side
    810,404.07x = 500,941,096,815.80
  5. Step 5: Solve for x
    x = 500,941,096,815.80/810,404.07
  6. Step 6: Final answer
    x = 618,137.44

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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.