Home / 379,570.02-523,817.21-209,815.06

Finding the Fourth Proportional to 379,570.02, 523,817.21 and 209,815.06

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Solution

The fourth proportional to 379,570.02, 523,817.21 and 209,815.06 is: 289,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,570.02 : 523,817.21 = 209,815.06 : x
  2. Step 2: Convert to fraction form
    379,570.02/523,817.21 = 209,815.06/x
  3. Step 3: Cross multiply
    379,570.02x = 523,817.21 × 209,815.06
  4. Step 4: Simplify right side
    379,570.02x = 109,904,739,345.18
  5. Step 5: Solve for x
    x = 109,904,739,345.18/379,570.02
  6. Step 6: Final answer
    x = 289,550.63

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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.