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Finding the Fourth Proportional to 524,409.20, 785,933.40 and 243,328.40

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Solution

The fourth proportional to 524,409.20, 785,933.40 and 243,328.40 is: 364,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,409.20 : 785,933.40 = 243,328.40 : x
  2. Step 2: Convert to fraction form
    524,409.20/785,933.40 = 243,328.40/x
  3. Step 3: Cross multiply
    524,409.20x = 785,933.40 × 243,328.40
  4. Step 4: Simplify right side
    524,409.20x = 191,239,916,728.56
  5. Step 5: Solve for x
    x = 191,239,916,728.56/524,409.20
  6. Step 6: Final answer
    x = 364,676.89

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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.