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Finding the Fourth Proportional to 531,047.75, 732,841.83 and 289,329.57

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Solution

The fourth proportional to 531,047.75, 732,841.83 and 289,329.57 is: 399,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,047.75 : 732,841.83 = 289,329.57 : x
  2. Step 2: Convert to fraction form
    531,047.75/732,841.83 = 289,329.57/x
  3. Step 3: Cross multiply
    531,047.75x = 732,841.83 × 289,329.57
  4. Step 4: Simplify right side
    531,047.75x = 212,032,811,551.91
  5. Step 5: Solve for x
    x = 212,032,811,551.91/531,047.75
  6. Step 6: Final answer
    x = 399,272.60

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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.