Home / 738,448.26-1,019,059.50-398,916.50

Finding the Fourth Proportional to 738,448.26, 1,019,059.50 and 398,916.50

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Solution

The fourth proportional to 738,448.26, 1,019,059.50 and 398,916.50 is: 550,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,448.26 : 1,019,059.50 = 398,916.50 : x
  2. Step 2: Convert to fraction form
    738,448.26/1,019,059.50 = 398,916.50/x
  3. Step 3: Cross multiply
    738,448.26x = 1,019,059.50 × 398,916.50
  4. Step 4: Simplify right side
    738,448.26x = 406,519,649,031.75
  5. Step 5: Solve for x
    x = 406,519,649,031.75/738,448.26
  6. Step 6: Final answer
    x = 550,505.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.