Home / 929,774.90-1,395,200.84-389,983.21

Finding the Fourth Proportional to 929,774.90, 1,395,200.84 and 389,983.21

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Solution

The fourth proportional to 929,774.90, 1,395,200.84 and 389,983.21 is: 585,200.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,774.90 : 1,395,200.84 = 389,983.21 : x
  2. Step 2: Convert to fraction form
    929,774.90/1,395,200.84 = 389,983.21/x
  3. Step 3: Cross multiply
    929,774.90x = 1,395,200.84 × 389,983.21
  4. Step 4: Simplify right side
    929,774.90x = 544,104,896,739.98
  5. Step 5: Solve for x
    x = 544,104,896,739.98/929,774.90
  6. Step 6: Final answer
    x = 585,200.67

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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.