Home / 728,165.04-1,004,902.24-405,877.80

Finding the Fourth Proportional to 728,165.04, 1,004,902.24 and 405,877.80

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Solution

The fourth proportional to 728,165.04, 1,004,902.24 and 405,877.80 is: 560,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,165.04 : 1,004,902.24 = 405,877.80 : x
  2. Step 2: Convert to fraction form
    728,165.04/1,004,902.24 = 405,877.80/x
  3. Step 3: Cross multiply
    728,165.04x = 1,004,902.24 × 405,877.80
  4. Step 4: Simplify right side
    728,165.04x = 407,867,510,386.27
  5. Step 5: Solve for x
    x = 407,867,510,386.27/728,165.04
  6. Step 6: Final answer
    x = 560,130.59

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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.