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Finding the Fourth Proportional to 864,087.60, 1,295,958.60 and 414,807.60

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Solution

The fourth proportional to 864,087.60, 1,295,958.60 and 414,807.60 is: 622,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,087.60 : 1,295,958.60 = 414,807.60 : x
  2. Step 2: Convert to fraction form
    864,087.60/1,295,958.60 = 414,807.60/x
  3. Step 3: Cross multiply
    864,087.60x = 1,295,958.60 × 414,807.60
  4. Step 4: Simplify right side
    864,087.60x = 537,573,476,565.36
  5. Step 5: Solve for x
    x = 537,573,476,565.36/864,087.60
  6. Step 6: Final answer
    x = 622,128.45

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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.