Home / 379,397.04-523,564.20-209,627.52

Finding the Fourth Proportional to 379,397.04, 523,564.20 and 209,627.52

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Solution

The fourth proportional to 379,397.04, 523,564.20 and 209,627.52 is: 289,283.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,397.04 : 523,564.20 = 209,627.52 : x
  2. Step 2: Convert to fraction form
    379,397.04/523,564.20 = 209,627.52/x
  3. Step 3: Cross multiply
    379,397.04x = 523,564.20 × 209,627.52
  4. Step 4: Simplify right side
    379,397.04x = 109,753,464,806.78
  5. Step 5: Solve for x
    x = 109,753,464,806.78/379,397.04
  6. Step 6: Final answer
    x = 289,283.92

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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.