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Finding the Fourth Proportional to 450,663.04, 622,071.54 and 278,712.64

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Solution

The fourth proportional to 450,663.04, 622,071.54 and 278,712.64 is: 384,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,663.04 : 622,071.54 = 278,712.64 : x
  2. Step 2: Convert to fraction form
    450,663.04/622,071.54 = 278,712.64/x
  3. Step 3: Cross multiply
    450,663.04x = 622,071.54 × 278,712.64
  4. Step 4: Simplify right side
    450,663.04x = 173,379,201,182.27
  5. Step 5: Solve for x
    x = 173,379,201,182.27/450,663.04
  6. Step 6: Final answer
    x = 384,720.26

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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.