Home / 483,118.08-721,423.77-394,547.28

Finding the Fourth Proportional to 483,118.08, 721,423.77 and 394,547.28

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Solution

The fourth proportional to 483,118.08, 721,423.77 and 394,547.28 is: 589,164.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,118.08 : 721,423.77 = 394,547.28 : x
  2. Step 2: Convert to fraction form
    483,118.08/721,423.77 = 394,547.28/x
  3. Step 3: Cross multiply
    483,118.08x = 721,423.77 × 394,547.28
  4. Step 4: Simplify right side
    483,118.08x = 284,635,786,180.85
  5. Step 5: Solve for x
    x = 284,635,786,180.85/483,118.08
  6. Step 6: Final answer
    x = 589,164.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.