Home / 684,455.12-1,026,829.20-204,720.56

Finding the Fourth Proportional to 684,455.12, 1,026,829.20 and 204,720.56

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Solution

The fourth proportional to 684,455.12, 1,026,829.20 and 204,720.56 is: 307,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,455.12 : 1,026,829.20 = 204,720.56 : x
  2. Step 2: Convert to fraction form
    684,455.12/1,026,829.20 = 204,720.56/x
  3. Step 3: Cross multiply
    684,455.12x = 1,026,829.20 × 204,720.56
  4. Step 4: Simplify right side
    684,455.12x = 210,213,048,848.35
  5. Step 5: Solve for x
    x = 210,213,048,848.35/684,455.12
  6. Step 6: Final answer
    x = 307,124.66

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1.5x scale

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.