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Finding the Fourth Proportional to 555,494.16, 766,582.56 and 300,845.64

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Solution

The fourth proportional to 555,494.16, 766,582.56 and 300,845.64 is: 415,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,494.16 : 766,582.56 = 300,845.64 : x
  2. Step 2: Convert to fraction form
    555,494.16/766,582.56 = 300,845.64/x
  3. Step 3: Cross multiply
    555,494.16x = 766,582.56 × 300,845.64
  4. Step 4: Simplify right side
    555,494.16x = 230,623,020,876.04
  5. Step 5: Solve for x
    x = 230,623,020,876.04/555,494.16
  6. Step 6: Final answer
    x = 415,167.32

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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.