Home / 738,187.16-1,018,698.32-398,655.41

Finding the Fourth Proportional to 738,187.16, 1,018,698.32 and 398,655.41

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Solution

The fourth proportional to 738,187.16, 1,018,698.32 and 398,655.41 is: 550,144.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,187.16 : 1,018,698.32 = 398,655.41 : x
  2. Step 2: Convert to fraction form
    738,187.16/1,018,698.32 = 398,655.41/x
  3. Step 3: Cross multiply
    738,187.16x = 1,018,698.32 × 398,655.41
  4. Step 4: Simplify right side
    738,187.16x = 406,109,592,329.06
  5. Step 5: Solve for x
    x = 406,109,592,329.06/738,187.16
  6. Step 6: Final answer
    x = 550,144.49

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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.