Home / 738,169.20-1,018,673.52-398,637.44

Finding the Fourth Proportional to 738,169.20, 1,018,673.52 and 398,637.44

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Solution

The fourth proportional to 738,169.20, 1,018,673.52 and 398,637.44 is: 550,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,169.20 : 1,018,673.52 = 398,637.44 : x
  2. Step 2: Convert to fraction form
    738,169.20/1,018,673.52 = 398,637.44/x
  3. Step 3: Cross multiply
    738,169.20x = 1,018,673.52 × 398,637.44
  4. Step 4: Simplify right side
    738,169.20x = 406,081,404,208.59
  5. Step 5: Solve for x
    x = 406,081,404,208.59/738,169.20
  6. Step 6: Final answer
    x = 550,119.68

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1.5x scale

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.