Home / 509,926.80-764,999.55-154,976.70

Finding the Fourth Proportional to 509,926.80, 764,999.55 and 154,976.70

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Solution

The fourth proportional to 509,926.80, 764,999.55 and 154,976.70 is: 232,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,926.80 : 764,999.55 = 154,976.70 : x
  2. Step 2: Convert to fraction form
    509,926.80/764,999.55 = 154,976.70/x
  3. Step 3: Cross multiply
    509,926.80x = 764,999.55 × 154,976.70
  4. Step 4: Simplify right side
    509,926.80x = 118,557,105,760.49
  5. Step 5: Solve for x
    x = 118,557,105,760.49/509,926.80
  6. Step 6: Final answer
    x = 232,498.28

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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.