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Finding the Fourth Proportional to 486,124.40, 729,186.60 and 456,575.60

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Solution

The fourth proportional to 486,124.40, 729,186.60 and 456,575.60 is: 684,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,124.40 : 729,186.60 = 456,575.60 : x
  2. Step 2: Convert to fraction form
    486,124.40/729,186.60 = 456,575.60/x
  3. Step 3: Cross multiply
    486,124.40x = 729,186.60 × 456,575.60
  4. Step 4: Simplify right side
    486,124.40x = 332,928,809,406.96
  5. Step 5: Solve for x
    x = 332,928,809,406.96/486,124.40
  6. Step 6: Final answer
    x = 684,863.40

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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.