Home / 1,078,706.61-1,618,782.26-447,621.03

Finding the Fourth Proportional to 1,078,706.61, 1,618,782.26 and 447,621.03

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Solution

The fourth proportional to 1,078,706.61, 1,618,782.26 and 447,621.03 is: 671,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,706.61 : 1,618,782.26 = 447,621.03 : x
  2. Step 2: Convert to fraction form
    1,078,706.61/1,618,782.26 = 447,621.03/x
  3. Step 3: Cross multiply
    1,078,706.61x = 1,618,782.26 × 447,621.03
  4. Step 4: Simplify right side
    1,078,706.61x = 724,600,980,328.82
  5. Step 5: Solve for x
    x = 724,600,980,328.82/1,078,706.61
  6. Step 6: Final answer
    x = 671,731.29

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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.