Home / 738,225.28-1,018,750.72-398,693.44

Finding the Fourth Proportional to 738,225.28, 1,018,750.72 and 398,693.44

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Solution

The fourth proportional to 738,225.28, 1,018,750.72 and 398,693.44 is: 550,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,225.28 : 1,018,750.72 = 398,693.44 : x
  2. Step 2: Convert to fraction form
    738,225.28/1,018,750.72 = 398,693.44/x
  3. Step 3: Cross multiply
    738,225.28x = 1,018,750.72 × 398,693.44
  4. Step 4: Simplify right side
    738,225.28x = 406,169,229,059.28
  5. Step 5: Solve for x
    x = 406,169,229,059.28/738,225.28
  6. Step 6: Final answer
    x = 550,196.86

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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.