Home / 727,018.89-1,002,632.94-455,111.57

Finding the Fourth Proportional to 727,018.89, 1,002,632.94 and 455,111.57

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Solution

The fourth proportional to 727,018.89, 1,002,632.94 and 455,111.57 is: 627,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,018.89 : 1,002,632.94 = 455,111.57 : x
  2. Step 2: Convert to fraction form
    727,018.89/1,002,632.94 = 455,111.57/x
  3. Step 3: Cross multiply
    727,018.89x = 1,002,632.94 × 455,111.57
  4. Step 4: Simplify right side
    727,018.89x = 456,309,851,457.12
  5. Step 5: Solve for x
    x = 456,309,851,457.12/727,018.89
  6. Step 6: Final answer
    x = 627,645.11

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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.