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Finding the Fourth Proportional to 555,089.69, 766,042.32 and 340,188.23

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Solution

The fourth proportional to 555,089.69, 766,042.32 and 340,188.23 is: 469,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,089.69 : 766,042.32 = 340,188.23 : x
  2. Step 2: Convert to fraction form
    555,089.69/766,042.32 = 340,188.23/x
  3. Step 3: Cross multiply
    555,089.69x = 766,042.32 × 340,188.23
  4. Step 4: Simplify right side
    555,089.69x = 260,598,577,115.68
  5. Step 5: Solve for x
    x = 260,598,577,115.68/555,089.69
  6. Step 6: Final answer
    x = 469,471.12

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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.