Home / 558,364.23-770,679.50-316,788.21

Finding the Fourth Proportional to 558,364.23, 770,679.50 and 316,788.21

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Solution

The fourth proportional to 558,364.23, 770,679.50 and 316,788.21 is: 437,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,364.23 : 770,679.50 = 316,788.21 : x
  2. Step 2: Convert to fraction form
    558,364.23/770,679.50 = 316,788.21/x
  3. Step 3: Cross multiply
    558,364.23x = 770,679.50 × 316,788.21
  4. Step 4: Simplify right side
    558,364.23x = 244,142,179,288.70
  5. Step 5: Solve for x
    x = 244,142,179,288.70/558,364.23
  6. Step 6: Final answer
    x = 437,245.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.