Home / 379,445.24-523,667.56-209,712.16

Finding the Fourth Proportional to 379,445.24, 523,667.56 and 209,712.16

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Solution

The fourth proportional to 379,445.24, 523,667.56 and 209,712.16 is: 289,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,445.24 : 523,667.56 = 209,712.16 : x
  2. Step 2: Convert to fraction form
    379,445.24/523,667.56 = 209,712.16/x
  3. Step 3: Cross multiply
    379,445.24x = 523,667.56 × 209,712.16
  4. Step 4: Simplify right side
    379,445.24x = 109,819,455,129.53
  5. Step 5: Solve for x
    x = 109,819,455,129.53/379,445.24
  6. Step 6: Final answer
    x = 289,421.09

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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.