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Finding the Fourth Proportional to 626,824.40, 940,639.80 and 346,542.80

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Solution

The fourth proportional to 626,824.40, 940,639.80 and 346,542.80 is: 520,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,824.40 : 940,639.80 = 346,542.80 : x
  2. Step 2: Convert to fraction form
    626,824.40/940,639.80 = 346,542.80/x
  3. Step 3: Cross multiply
    626,824.40x = 940,639.80 × 346,542.80
  4. Step 4: Simplify right side
    626,824.40x = 325,971,950,083.44
  5. Step 5: Solve for x
    x = 325,971,950,083.44/626,824.40
  6. Step 6: Final answer
    x = 520,037.11

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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.