Home / 509,914.80-764,981.55-154,964.70

Finding the Fourth Proportional to 509,914.80, 764,981.55 and 154,964.70

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Solution

The fourth proportional to 509,914.80, 764,981.55 and 154,964.70 is: 232,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,914.80 : 764,981.55 = 154,964.70 : x
  2. Step 2: Convert to fraction form
    509,914.80/764,981.55 = 154,964.70/x
  3. Step 3: Cross multiply
    509,914.80x = 764,981.55 × 154,964.70
  4. Step 4: Simplify right side
    509,914.80x = 118,545,136,401.29
  5. Step 5: Solve for x
    x = 118,545,136,401.29/509,914.80
  6. Step 6: Final answer
    x = 232,480.28

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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.