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Finding the Fourth Proportional to 618,029.80, 926,814.30 and 243,975.40

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Solution

The fourth proportional to 618,029.80, 926,814.30 and 243,975.40 is: 365,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,029.80 : 926,814.30 = 243,975.40 : x
  2. Step 2: Convert to fraction form
    618,029.80/926,814.30 = 243,975.40/x
  3. Step 3: Cross multiply
    618,029.80x = 926,814.30 × 243,975.40
  4. Step 4: Simplify right side
    618,029.80x = 226,119,889,568.22
  5. Step 5: Solve for x
    x = 226,119,889,568.22/618,029.80
  6. Step 6: Final answer
    x = 365,872.15

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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.