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Finding the Fourth Proportional to 528,008.40, 792,012.60 and 148,928.40

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Solution

The fourth proportional to 528,008.40, 792,012.60 and 148,928.40 is: 223,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,008.40 : 792,012.60 = 148,928.40 : x
  2. Step 2: Convert to fraction form
    528,008.40/792,012.60 = 148,928.40/x
  3. Step 3: Cross multiply
    528,008.40x = 792,012.60 × 148,928.40
  4. Step 4: Simplify right side
    528,008.40x = 117,953,169,297.84
  5. Step 5: Solve for x
    x = 117,953,169,297.84/528,008.40
  6. Step 6: Final answer
    x = 223,392.60

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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.