Home / 729,312.71-1,006,521.49-407,052.79

Finding the Fourth Proportional to 729,312.71, 1,006,521.49 and 407,052.79

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Solution

The fourth proportional to 729,312.71, 1,006,521.49 and 407,052.79 is: 561,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,312.71 : 1,006,521.49 = 407,052.79 : x
  2. Step 2: Convert to fraction form
    729,312.71/1,006,521.49 = 407,052.79/x
  3. Step 3: Cross multiply
    729,312.71x = 1,006,521.49 × 407,052.79
  4. Step 4: Simplify right side
    729,312.71x = 409,707,384,353.65
  5. Step 5: Solve for x
    x = 409,707,384,353.65/729,312.71
  6. Step 6: Final answer
    x = 561,771.90

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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.