Home / 718,027.12-1,076,023.72-398,318.70

Finding the Fourth Proportional to 718,027.12, 1,076,023.72 and 398,318.70

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Solution

The fourth proportional to 718,027.12, 1,076,023.72 and 398,318.70 is: 596,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,027.12 : 1,076,023.72 = 398,318.70 : x
  2. Step 2: Convert to fraction form
    718,027.12/1,076,023.72 = 398,318.70/x
  3. Step 3: Cross multiply
    718,027.12x = 1,076,023.72 × 398,318.70
  4. Step 4: Simplify right side
    718,027.12x = 428,600,369,319.56
  5. Step 5: Solve for x
    x = 428,600,369,319.56/718,027.12
  6. Step 6: Final answer
    x = 596,913.90

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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.