Home / 782,574.49-1,173,640.29-355,871.65

Finding the Fourth Proportional to 782,574.49, 1,173,640.29 and 355,871.65

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Solution

The fourth proportional to 782,574.49, 1,173,640.29 and 355,871.65 is: 533,706.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,574.49 : 1,173,640.29 = 355,871.65 : x
  2. Step 2: Convert to fraction form
    782,574.49/1,173,640.29 = 355,871.65/x
  3. Step 3: Cross multiply
    782,574.49x = 1,173,640.29 × 355,871.65
  4. Step 4: Simplify right side
    782,574.49x = 417,665,306,508.78
  5. Step 5: Solve for x
    x = 417,665,306,508.78/782,574.49
  6. Step 6: Final answer
    x = 533,706.77

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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.