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Finding the Fourth Proportional to 814,005, 1,123,326.90 and 451,484.37

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Solution

The fourth proportional to 814,005, 1,123,326.90 and 451,484.37 is: 623,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,005 : 1,123,326.90 = 451,484.37 : x
  2. Step 2: Convert to fraction form
    814,005/1,123,326.90 = 451,484.37/x
  3. Step 3: Cross multiply
    814,005x = 1,123,326.90 × 451,484.37
  4. Step 4: Simplify right side
    814,005x = 507,164,537,750.55
  5. Step 5: Solve for x
    x = 507,164,537,750.55/814,005
  6. Step 6: Final answer
    x = 623,048.43

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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.