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Finding the Fourth Proportional to 479,547.32, 661,676.51 and 275,558.83

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Solution

The fourth proportional to 479,547.32, 661,676.51 and 275,558.83 is: 380,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,547.32 : 661,676.51 = 275,558.83 : x
  2. Step 2: Convert to fraction form
    479,547.32/661,676.51 = 275,558.83/x
  3. Step 3: Cross multiply
    479,547.32x = 661,676.51 × 275,558.83
  4. Step 4: Simplify right side
    479,547.32x = 182,330,802,935.44
  5. Step 5: Solve for x
    x = 182,330,802,935.44/479,547.32
  6. Step 6: Final answer
    x = 380,214.42

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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.