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Finding the Fourth Proportional to 555,451.92, 766,522.48 and 300,802.32

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Solution

The fourth proportional to 555,451.92, 766,522.48 and 300,802.32 is: 415,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,451.92 : 766,522.48 = 300,802.32 : x
  2. Step 2: Convert to fraction form
    555,451.92/766,522.48 = 300,802.32/x
  3. Step 3: Cross multiply
    555,451.92x = 766,522.48 × 300,802.32
  4. Step 4: Simplify right side
    555,451.92x = 230,571,740,316.15
  5. Step 5: Solve for x
    x = 230,571,740,316.15/555,451.92
  6. Step 6: Final answer
    x = 415,106.57

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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.