Home / 1,122,623.17-1,549,221.45-639,188.54

Finding the Fourth Proportional to 1,122,623.17, 1,549,221.45 and 639,188.54

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Solution

The fourth proportional to 1,122,623.17, 1,549,221.45 and 639,188.54 is: 882,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,623.17 : 1,549,221.45 = 639,188.54 : x
  2. Step 2: Convert to fraction form
    1,122,623.17/1,549,221.45 = 639,188.54/x
  3. Step 3: Cross multiply
    1,122,623.17x = 1,549,221.45 × 639,188.54
  4. Step 4: Simplify right side
    1,122,623.17x = 990,244,596,762.18
  5. Step 5: Solve for x
    x = 990,244,596,762.18/1,122,623.17
  6. Step 6: Final answer
    x = 882,081.03

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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.