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Finding the Fourth Proportional to 524,401.20, 785,921.40 and 243,320.40

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Solution

The fourth proportional to 524,401.20, 785,921.40 and 243,320.40 is: 364,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,401.20 : 785,921.40 = 243,320.40 : x
  2. Step 2: Convert to fraction form
    524,401.20/785,921.40 = 243,320.40/x
  3. Step 3: Cross multiply
    524,401.20x = 785,921.40 × 243,320.40
  4. Step 4: Simplify right side
    524,401.20x = 191,230,709,416.56
  5. Step 5: Solve for x
    x = 191,230,709,416.56/524,401.20
  6. Step 6: Final answer
    x = 364,664.90

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1.5x scale

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.