Home / 1,078,464.60-1,619,009.10-545,711.40

Finding the Fourth Proportional to 1,078,464.60, 1,619,009.10 and 545,711.40

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Solution

The fourth proportional to 1,078,464.60, 1,619,009.10 and 545,711.40 is: 819,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,464.60 : 1,619,009.10 = 545,711.40 : x
  2. Step 2: Convert to fraction form
    1,078,464.60/1,619,009.10 = 545,711.40/x
  3. Step 3: Cross multiply
    1,078,464.60x = 1,619,009.10 × 545,711.40
  4. Step 4: Simplify right side
    1,078,464.60x = 883,511,722,573.74
  5. Step 5: Solve for x
    x = 883,511,722,573.74/1,078,464.60
  6. Step 6: Final answer
    x = 819,231.08

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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.