Home / 728,358.74-1,005,769.73-456,893.27

Finding the Fourth Proportional to 728,358.74, 1,005,769.73 and 456,893.27

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Solution

The fourth proportional to 728,358.74, 1,005,769.73 and 456,893.27 is: 630,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,358.74 : 1,005,769.73 = 456,893.27 : x
  2. Step 2: Convert to fraction form
    728,358.74/1,005,769.73 = 456,893.27/x
  3. Step 3: Cross multiply
    728,358.74x = 1,005,769.73 × 456,893.27
  4. Step 4: Simplify right side
    728,358.74x = 459,529,413,493.40
  5. Step 5: Solve for x
    x = 459,529,413,493.40/728,358.74
  6. Step 6: Final answer
    x = 630,910.82

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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.