Home / 874,328.45-1,311,669.47-368,890.65

Finding the Fourth Proportional to 874,328.45, 1,311,669.47 and 368,890.65

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Solution

The fourth proportional to 874,328.45, 1,311,669.47 and 368,890.65 is: 553,410.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,328.45 : 1,311,669.47 = 368,890.65 : x
  2. Step 2: Convert to fraction form
    874,328.45/1,311,669.47 = 368,890.65/x
  3. Step 3: Cross multiply
    874,328.45x = 1,311,669.47 × 368,890.65
  4. Step 4: Simplify right side
    874,328.45x = 483,862,601,529.00
  5. Step 5: Solve for x
    x = 483,862,601,529.00/874,328.45
  6. Step 6: Final answer
    x = 553,410.57

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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.