Home / 819,114.78-1,130,383.95-456,561.96

Finding the Fourth Proportional to 819,114.78, 1,130,383.95 and 456,561.96

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Solution

The fourth proportional to 819,114.78, 1,130,383.95 and 456,561.96 is: 630,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,114.78 : 1,130,383.95 = 456,561.96 : x
  2. Step 2: Convert to fraction form
    819,114.78/1,130,383.95 = 456,561.96/x
  3. Step 3: Cross multiply
    819,114.78x = 1,130,383.95 × 456,561.96
  4. Step 4: Simplify right side
    819,114.78x = 516,090,311,764.54
  5. Step 5: Solve for x
    x = 516,090,311,764.54/819,114.78
  6. Step 6: Final answer
    x = 630,058.60

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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.