Home / 723,614.40-1,085,421.60-443,678.40

Finding the Fourth Proportional to 723,614.40, 1,085,421.60 and 443,678.40

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Solution

The fourth proportional to 723,614.40, 1,085,421.60 and 443,678.40 is: 665,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,614.40 : 1,085,421.60 = 443,678.40 : x
  2. Step 2: Convert to fraction form
    723,614.40/1,085,421.60 = 443,678.40/x
  3. Step 3: Cross multiply
    723,614.40x = 1,085,421.60 × 443,678.40
  4. Step 4: Simplify right side
    723,614.40x = 481,578,118,813.44
  5. Step 5: Solve for x
    x = 481,578,118,813.44/723,614.40
  6. Step 6: Final answer
    x = 665,517.60

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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.