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Finding the Fourth Proportional to 579,658.68, 799,852.86 and 321,532.74

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Solution

The fourth proportional to 579,658.68, 799,852.86 and 321,532.74 is: 443,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,658.68 : 799,852.86 = 321,532.74 : x
  2. Step 2: Convert to fraction form
    579,658.68/799,852.86 = 321,532.74/x
  3. Step 3: Cross multiply
    579,658.68x = 799,852.86 × 321,532.74
  4. Step 4: Simplify right side
    579,658.68x = 257,178,881,672.64
  5. Step 5: Solve for x
    x = 257,178,881,672.64/579,658.68
  6. Step 6: Final answer
    x = 443,672.96

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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.