Home / 738,334.44-1,018,901.50-398,802.69

Finding the Fourth Proportional to 738,334.44, 1,018,901.50 and 398,802.69

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Solution

The fourth proportional to 738,334.44, 1,018,901.50 and 398,802.69 is: 550,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,334.44 : 1,018,901.50 = 398,802.69 : x
  2. Step 2: Convert to fraction form
    738,334.44/1,018,901.50 = 398,802.69/x
  3. Step 3: Cross multiply
    738,334.44x = 1,018,901.50 × 398,802.69
  4. Step 4: Simplify right side
    738,334.44x = 406,340,658,048.03
  5. Step 5: Solve for x
    x = 406,340,658,048.03/738,334.44
  6. Step 6: Final answer
    x = 550,347.70

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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.