Home / 628,113.62-941,813.50-428,675.62

Finding the Fourth Proportional to 628,113.62, 941,813.50 and 428,675.62

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Solution

The fourth proportional to 628,113.62, 941,813.50 and 428,675.62 is: 642,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,113.62 : 941,813.50 = 428,675.62 : x
  2. Step 2: Convert to fraction form
    628,113.62/941,813.50 = 428,675.62/x
  3. Step 3: Cross multiply
    628,113.62x = 941,813.50 × 428,675.62
  4. Step 4: Simplify right side
    628,113.62x = 403,732,486,036.87
  5. Step 5: Solve for x
    x = 403,732,486,036.87/628,113.62
  6. Step 6: Final answer
    x = 642,769.83

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1.5x scale

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.