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Finding the Fourth Proportional to 1,078,764.80, 1,614,460.80 and 946,054.40

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Solution

The fourth proportional to 1,078,764.80, 1,614,460.80 and 946,054.40 is: 1,415,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,764.80 : 1,614,460.80 = 946,054.40 : x
  2. Step 2: Convert to fraction form
    1,078,764.80/1,614,460.80 = 946,054.40/x
  3. Step 3: Cross multiply
    1,078,764.80x = 1,614,460.80 × 946,054.40
  4. Step 4: Simplify right side
    1,078,764.80x = 1,527,367,743,467.52
  5. Step 5: Solve for x
    x = 1,527,367,743,467.52/1,078,764.80
  6. Step 6: Final answer
    x = 1,415,848.70

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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.