Home / 685,348.35-1,028,965.92-348,616.89

Finding the Fourth Proportional to 685,348.35, 1,028,965.92 and 348,616.89

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Solution

The fourth proportional to 685,348.35, 1,028,965.92 and 348,616.89 is: 523,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,348.35 : 1,028,965.92 = 348,616.89 : x
  2. Step 2: Convert to fraction form
    685,348.35/1,028,965.92 = 348,616.89/x
  3. Step 3: Cross multiply
    685,348.35x = 1,028,965.92 × 348,616.89
  4. Step 4: Simplify right side
    685,348.35x = 358,714,898,946.39
  5. Step 5: Solve for x
    x = 358,714,898,946.39/685,348.35
  6. Step 6: Final answer
    x = 523,405.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.