Home / 420,029.40-629,880.30-183,210.60

Finding the Fourth Proportional to 420,029.40, 629,880.30 and 183,210.60

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Solution

The fourth proportional to 420,029.40, 629,880.30 and 183,210.60 is: 274,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,029.40 : 629,880.30 = 183,210.60 : x
  2. Step 2: Convert to fraction form
    420,029.40/629,880.30 = 183,210.60/x
  3. Step 3: Cross multiply
    420,029.40x = 629,880.30 × 183,210.60
  4. Step 4: Simplify right side
    420,029.40x = 115,400,747,691.18
  5. Step 5: Solve for x
    x = 115,400,747,691.18/420,029.40
  6. Step 6: Final answer
    x = 274,744.45

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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.