Home / 990,789.48-1,367,289.39-561,152.64

Finding the Fourth Proportional to 990,789.48, 1,367,289.39 and 561,152.64

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Solution

The fourth proportional to 990,789.48, 1,367,289.39 and 561,152.64 is: 774,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,789.48 : 1,367,289.39 = 561,152.64 : x
  2. Step 2: Convert to fraction form
    990,789.48/1,367,289.39 = 561,152.64/x
  3. Step 3: Cross multiply
    990,789.48x = 1,367,289.39 × 561,152.64
  4. Step 4: Simplify right side
    990,789.48x = 767,258,050,842.49
  5. Step 5: Solve for x
    x = 767,258,050,842.49/990,789.48
  6. Step 6: Final answer
    x = 774,390.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.