Home / 644,672.10-966,674.42-289,380.18

Finding the Fourth Proportional to 644,672.10, 966,674.42 and 289,380.18

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Solution

The fourth proportional to 644,672.10, 966,674.42 and 289,380.18 is: 433,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,672.10 : 966,674.42 = 289,380.18 : x
  2. Step 2: Convert to fraction form
    644,672.10/966,674.42 = 289,380.18/x
  3. Step 3: Cross multiply
    644,672.10x = 966,674.42 × 289,380.18
  4. Step 4: Simplify right side
    644,672.10x = 279,736,417,661.00
  5. Step 5: Solve for x
    x = 279,736,417,661.00/644,672.10
  6. Step 6: Final answer
    x = 433,920.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.