Home / 1,326,305.60-1,989,458.40-439,841.60

Finding the Fourth Proportional to 1,326,305.60, 1,989,458.40 and 439,841.60

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Solution

The fourth proportional to 1,326,305.60, 1,989,458.40 and 439,841.60 is: 659,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,305.60 : 1,989,458.40 = 439,841.60 : x
  2. Step 2: Convert to fraction form
    1,326,305.60/1,989,458.40 = 439,841.60/x
  3. Step 3: Cross multiply
    1,326,305.60x = 1,989,458.40 × 439,841.60
  4. Step 4: Simplify right side
    1,326,305.60x = 875,046,565,789.44
  5. Step 5: Solve for x
    x = 875,046,565,789.44/1,326,305.60
  6. Step 6: Final answer
    x = 659,762.40

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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.