Home / 723,606.40-1,085,409.60-443,670.40

Finding the Fourth Proportional to 723,606.40, 1,085,409.60 and 443,670.40

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Solution

The fourth proportional to 723,606.40, 1,085,409.60 and 443,670.40 is: 665,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,606.40 : 1,085,409.60 = 443,670.40 : x
  2. Step 2: Convert to fraction form
    723,606.40/1,085,409.60 = 443,670.40/x
  3. Step 3: Cross multiply
    723,606.40x = 1,085,409.60 × 443,670.40
  4. Step 4: Simplify right side
    723,606.40x = 481,564,111,395.84
  5. Step 5: Solve for x
    x = 481,564,111,395.84/723,606.40
  6. Step 6: Final answer
    x = 665,505.60

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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.