Home / 628,113.24-941,812.95-428,675.24

Finding the Fourth Proportional to 628,113.24, 941,812.95 and 428,675.24

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Solution

The fourth proportional to 628,113.24, 941,812.95 and 428,675.24 is: 642,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,113.24 : 941,812.95 = 428,675.24 : x
  2. Step 2: Convert to fraction form
    628,113.24/941,812.95 = 428,675.24/x
  3. Step 3: Cross multiply
    628,113.24x = 941,812.95 × 428,675.24
  4. Step 4: Simplify right side
    628,113.24x = 403,731,892,376.36
  5. Step 5: Solve for x
    x = 403,731,892,376.36/628,113.24
  6. Step 6: Final answer
    x = 642,769.28

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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.