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Finding the Fourth Proportional to 531,049.75, 732,844.59 and 289,331.57

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Solution

The fourth proportional to 531,049.75, 732,844.59 and 289,331.57 is: 399,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,049.75 : 732,844.59 = 289,331.57 : x
  2. Step 2: Convert to fraction form
    531,049.75/732,844.59 = 289,331.57/x
  3. Step 3: Cross multiply
    531,049.75x = 732,844.59 × 289,331.57
  4. Step 4: Simplify right side
    531,049.75x = 212,035,075,790.71
  5. Step 5: Solve for x
    x = 212,035,075,790.71/531,049.75
  6. Step 6: Final answer
    x = 399,275.35

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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.