Home / 738,351.52-1,018,925.14-398,819.77

Finding the Fourth Proportional to 738,351.52, 1,018,925.14 and 398,819.77

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Solution

The fourth proportional to 738,351.52, 1,018,925.14 and 398,819.77 is: 550,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,351.52 : 1,018,925.14 = 398,819.77 : x
  2. Step 2: Convert to fraction form
    738,351.52/1,018,925.14 = 398,819.77/x
  3. Step 3: Cross multiply
    738,351.52x = 1,018,925.14 × 398,819.77
  4. Step 4: Simplify right side
    738,351.52x = 406,367,491,532.28
  5. Step 5: Solve for x
    x = 406,367,491,532.28/738,351.52
  6. Step 6: Final answer
    x = 550,371.31

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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.