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Finding the Fourth Proportional to 579,442.41, 799,590.29 and 321,332.67

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Solution

The fourth proportional to 579,442.41, 799,590.29 and 321,332.67 is: 443,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,442.41 : 799,590.29 = 321,332.67 : x
  2. Step 2: Convert to fraction form
    579,442.41/799,590.29 = 321,332.67/x
  3. Step 3: Cross multiply
    579,442.41x = 799,590.29 × 321,332.67
  4. Step 4: Simplify right side
    579,442.41x = 256,934,481,185.11
  5. Step 5: Solve for x
    x = 256,934,481,185.11/579,442.41
  6. Step 6: Final answer
    x = 443,416.77

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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.