Home / 579,039.33-799,054.95-320,905.29

Finding the Fourth Proportional to 579,039.33, 799,054.95 and 320,905.29

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Solution

The fourth proportional to 579,039.33, 799,054.95 and 320,905.29 is: 442,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,039.33 : 799,054.95 = 320,905.29 : x
  2. Step 2: Convert to fraction form
    579,039.33/799,054.95 = 320,905.29/x
  3. Step 3: Cross multiply
    579,039.33x = 799,054.95 × 320,905.29
  4. Step 4: Simplify right side
    579,039.33x = 256,420,960,455.69
  5. Step 5: Solve for x
    x = 256,420,960,455.69/579,039.33
  6. Step 6: Final answer
    x = 442,838.59

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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.