Home / 1,122,558.77-1,549,096.49-639,192.89

Finding the Fourth Proportional to 1,122,558.77, 1,549,096.49 and 639,192.89

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Solution

The fourth proportional to 1,122,558.77, 1,549,096.49 and 639,192.89 is: 882,066.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,558.77 : 1,549,096.49 = 639,192.89 : x
  2. Step 2: Convert to fraction form
    1,122,558.77/1,549,096.49 = 639,192.89/x
  3. Step 3: Cross multiply
    1,122,558.77x = 1,549,096.49 × 639,192.89
  4. Step 4: Simplify right side
    1,122,558.77x = 990,171,451,390.51
  5. Step 5: Solve for x
    x = 990,171,451,390.51/1,122,558.77
  6. Step 6: Final answer
    x = 882,066.47

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Double scale
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1.5x scale

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.