Home / 628,055.17-941,726.00-428,617.17

Finding the Fourth Proportional to 628,055.17, 941,726.00 and 428,617.17

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Solution

The fourth proportional to 628,055.17, 941,726.00 and 428,617.17 is: 642,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,055.17 : 941,726.00 = 428,617.17 : x
  2. Step 2: Convert to fraction form
    628,055.17/941,726.00 = 428,617.17/x
  3. Step 3: Cross multiply
    628,055.17x = 941,726.00 × 428,617.17
  4. Step 4: Simplify right side
    628,055.17x = 403,639,931,695.99
  5. Step 5: Solve for x
    x = 403,639,931,695.99/628,055.17
  6. Step 6: Final answer
    x = 642,682.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.