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Finding the Fourth Proportional to 531,316.64, 733,216.38 and 289,599.68

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Solution

The fourth proportional to 531,316.64, 733,216.38 and 289,599.68 is: 399,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,316.64 : 733,216.38 = 289,599.68 : x
  2. Step 2: Convert to fraction form
    531,316.64/733,216.38 = 289,599.68/x
  3. Step 3: Cross multiply
    531,316.64x = 733,216.38 × 289,599.68
  4. Step 4: Simplify right side
    531,316.64x = 212,339,229,018.76
  5. Step 5: Solve for x
    x = 212,339,229,018.76/531,316.64
  6. Step 6: Final answer
    x = 399,647.24

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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.