Home / 869,123.70-1,303,685.55-764,061.30

Finding the Fourth Proportional to 869,123.70, 1,303,685.55 and 764,061.30

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Solution

The fourth proportional to 869,123.70, 1,303,685.55 and 764,061.30 is: 1,146,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,123.70 : 1,303,685.55 = 764,061.30 : x
  2. Step 2: Convert to fraction form
    869,123.70/1,303,685.55 = 764,061.30/x
  3. Step 3: Cross multiply
    869,123.70x = 1,303,685.55 × 764,061.30
  4. Step 4: Simplify right side
    869,123.70x = 996,095,676,124.22
  5. Step 5: Solve for x
    x = 996,095,676,124.22/869,123.70
  6. Step 6: Final answer
    x = 1,146,091.95

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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.