Home / 558,365.23-770,680.88-316,789.21

Finding the Fourth Proportional to 558,365.23, 770,680.88 and 316,789.21

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Solution

The fourth proportional to 558,365.23, 770,680.88 and 316,789.21 is: 437,246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,365.23 : 770,680.88 = 316,789.21 : x
  2. Step 2: Convert to fraction form
    558,365.23/770,680.88 = 316,789.21/x
  3. Step 3: Cross multiply
    558,365.23x = 770,680.88 × 316,789.21
  4. Step 4: Simplify right side
    558,365.23x = 244,143,387,137.31
  5. Step 5: Solve for x
    x = 244,143,387,137.31/558,365.23
  6. Step 6: Final answer
    x = 437,246.76

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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.