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Finding the Fourth Proportional to 402,504.54, 555,508.92 and 259,680.06

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Solution

The fourth proportional to 402,504.54, 555,508.92 and 259,680.06 is: 358,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,504.54 : 555,508.92 = 259,680.06 : x
  2. Step 2: Convert to fraction form
    402,504.54/555,508.92 = 259,680.06/x
  3. Step 3: Cross multiply
    402,504.54x = 555,508.92 × 259,680.06
  4. Step 4: Simplify right side
    402,504.54x = 144,254,589,676.14
  5. Step 5: Solve for x
    x = 144,254,589,676.14/402,504.54
  6. Step 6: Final answer
    x = 358,392.45

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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.