Home / 558,215.29-770,319.08-316,519.39

Finding the Fourth Proportional to 558,215.29, 770,319.08 and 316,519.39

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Solution

The fourth proportional to 558,215.29, 770,319.08 and 316,519.39 is: 436,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,215.29 : 770,319.08 = 316,519.39 : x
  2. Step 2: Convert to fraction form
    558,215.29/770,319.08 = 316,519.39/x
  3. Step 3: Cross multiply
    558,215.29x = 770,319.08 × 316,519.39
  4. Step 4: Simplify right side
    558,215.29x = 243,820,923,724.36
  5. Step 5: Solve for x
    x = 243,820,923,724.36/558,215.29
  6. Step 6: Final answer
    x = 436,786.54

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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.