Home / 870,876.90-1,303,362.90-764,588.70

Finding the Fourth Proportional to 870,876.90, 1,303,362.90 and 764,588.70

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Solution

The fourth proportional to 870,876.90, 1,303,362.90 and 764,588.70 is: 1,144,290.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,876.90 : 1,303,362.90 = 764,588.70 : x
  2. Step 2: Convert to fraction form
    870,876.90/1,303,362.90 = 764,588.70/x
  3. Step 3: Cross multiply
    870,876.90x = 1,303,362.90 × 764,588.70
  4. Step 4: Simplify right side
    870,876.90x = 996,536,545,339.23
  5. Step 5: Solve for x
    x = 996,536,545,339.23/870,876.90
  6. Step 6: Final answer
    x = 1,144,290.94

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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.