Home / 1,078,706.86-1,618,782.63-447,621.28

Finding the Fourth Proportional to 1,078,706.86, 1,618,782.63 and 447,621.28

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Solution

The fourth proportional to 1,078,706.86, 1,618,782.63 and 447,621.28 is: 671,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,706.86 : 1,618,782.63 = 447,621.28 : x
  2. Step 2: Convert to fraction form
    1,078,706.86/1,618,782.63 = 447,621.28/x
  3. Step 3: Cross multiply
    1,078,706.86x = 1,618,782.63 × 447,621.28
  4. Step 4: Simplify right side
    1,078,706.86x = 724,601,552,882.37
  5. Step 5: Solve for x
    x = 724,601,552,882.37/1,078,706.86
  6. Step 6: Final answer
    x = 671,731.66

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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.