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Finding the Fourth Proportional to 531,510.04, 733,489.59 and 289,790.65

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Solution

The fourth proportional to 531,510.04, 733,489.59 and 289,790.65 is: 399,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,510.04 : 733,489.59 = 289,790.65 : x
  2. Step 2: Convert to fraction form
    531,510.04/733,489.59 = 289,790.65/x
  3. Step 3: Cross multiply
    531,510.04x = 733,489.59 × 289,790.65
  4. Step 4: Simplify right side
    531,510.04x = 212,558,425,054.33
  5. Step 5: Solve for x
    x = 212,558,425,054.33/531,510.04
  6. Step 6: Final answer
    x = 399,914.22

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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.