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Finding the Fourth Proportional to 486,152.40, 729,228.60 and 456,603.60

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Solution

The fourth proportional to 486,152.40, 729,228.60 and 456,603.60 is: 684,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,152.40 : 729,228.60 = 456,603.60 : x
  2. Step 2: Convert to fraction form
    486,152.40/729,228.60 = 456,603.60/x
  3. Step 3: Cross multiply
    486,152.40x = 729,228.60 × 456,603.60
  4. Step 4: Simplify right side
    486,152.40x = 332,968,403,982.96
  5. Step 5: Solve for x
    x = 332,968,403,982.96/486,152.40
  6. Step 6: Final answer
    x = 684,905.40

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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.