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Finding the Fourth Proportional to 579,332.40, 799,525.80 and 321,234.96

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Solution

The fourth proportional to 579,332.40, 799,525.80 and 321,234.96 is: 443,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,332.40 : 799,525.80 = 321,234.96 : x
  2. Step 2: Convert to fraction form
    579,332.40/799,525.80 = 321,234.96/x
  3. Step 3: Cross multiply
    579,332.40x = 799,525.80 × 321,234.96
  4. Step 4: Simplify right side
    579,332.40x = 256,835,638,381.97
  5. Step 5: Solve for x
    x = 256,835,638,381.97/579,332.40
  6. Step 6: Final answer
    x = 443,330.35

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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.