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Finding the Fourth Proportional to 528,010.40, 792,015.60 and 360,048.80

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Solution

The fourth proportional to 528,010.40, 792,015.60 and 360,048.80 is: 540,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,010.40 : 792,015.60 = 360,048.80 : x
  2. Step 2: Convert to fraction form
    528,010.40/792,015.60 = 360,048.80/x
  3. Step 3: Cross multiply
    528,010.40x = 792,015.60 × 360,048.80
  4. Step 4: Simplify right side
    528,010.40x = 285,164,266,361.28
  5. Step 5: Solve for x
    x = 285,164,266,361.28/528,010.40
  6. Step 6: Final answer
    x = 540,073.20

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Similar ratio
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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.