Home / 1,326,635.40-1,990,724.46-558,076.76

Finding the Fourth Proportional to 1,326,635.40, 1,990,724.46 and 558,076.76

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Solution

The fourth proportional to 1,326,635.40, 1,990,724.46 and 558,076.76 is: 837,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,635.40 : 1,990,724.46 = 558,076.76 : x
  2. Step 2: Convert to fraction form
    1,326,635.40/1,990,724.46 = 558,076.76/x
  3. Step 3: Cross multiply
    1,326,635.40x = 1,990,724.46 × 558,076.76
  4. Step 4: Simplify right side
    1,326,635.40x = 1,110,977,056,689.55
  5. Step 5: Solve for x
    x = 1,110,977,056,689.55/1,326,635.40
  6. Step 6: Final answer
    x = 837,439.63

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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.