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Finding the Fourth Proportional to 531,480.41, 733,442.45 and 289,762.92

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Solution

The fourth proportional to 531,480.41, 733,442.45 and 289,762.92 is: 399,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,480.41 : 733,442.45 = 289,762.92 : x
  2. Step 2: Convert to fraction form
    531,480.41/733,442.45 = 289,762.92/x
  3. Step 3: Cross multiply
    531,480.41x = 733,442.45 × 289,762.92
  4. Step 4: Simplify right side
    531,480.41x = 212,524,423,267.29
  5. Step 5: Solve for x
    x = 212,524,423,267.29/531,480.41
  6. Step 6: Final answer
    x = 399,872.54

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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.