Home / 880,148.72-1,320,429.04-272,905.09

Finding the Fourth Proportional to 880,148.72, 1,320,429.04 and 272,905.09

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Solution

The fourth proportional to 880,148.72, 1,320,429.04 and 272,905.09 is: 409,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,148.72 : 1,320,429.04 = 272,905.09 : x
  2. Step 2: Convert to fraction form
    880,148.72/1,320,429.04 = 272,905.09/x
  3. Step 3: Cross multiply
    880,148.72x = 1,320,429.04 × 272,905.09
  4. Step 4: Simplify right side
    880,148.72x = 360,351,802,016.48
  5. Step 5: Solve for x
    x = 360,351,802,016.48/880,148.72
  6. Step 6: Final answer
    x = 409,421.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.