Home / 379,569.02-523,815.83-209,814.06

Finding the Fourth Proportional to 379,569.02, 523,815.83 and 209,814.06

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Solution

The fourth proportional to 379,569.02, 523,815.83 and 209,814.06 is: 289,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,569.02 : 523,815.83 = 209,814.06 : x
  2. Step 2: Convert to fraction form
    379,569.02/523,815.83 = 209,814.06/x
  3. Step 3: Cross multiply
    379,569.02x = 523,815.83 × 209,814.06
  4. Step 4: Simplify right side
    379,569.02x = 109,903,925,984.57
  5. Step 5: Solve for x
    x = 109,903,925,984.57/379,569.02
  6. Step 6: Final answer
    x = 289,549.25

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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.