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Finding the Fourth Proportional to 555,088.32, 766,040.42 and 340,186.86

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Solution

The fourth proportional to 555,088.32, 766,040.42 and 340,186.86 is: 469,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,088.32 : 766,040.42 = 340,186.86 : x
  2. Step 2: Convert to fraction form
    555,088.32/766,040.42 = 340,186.86/x
  3. Step 3: Cross multiply
    555,088.32x = 766,040.42 × 340,186.86
  4. Step 4: Simplify right side
    555,088.32x = 260,596,885,112.88
  5. Step 5: Solve for x
    x = 260,596,885,112.88/555,088.32
  6. Step 6: Final answer
    x = 469,469.23

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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.