Home / 729,424.46-1,006,606.91-407,134.49

Finding the Fourth Proportional to 729,424.46, 1,006,606.91 and 407,134.49

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Solution

The fourth proportional to 729,424.46, 1,006,606.91 and 407,134.49 is: 561,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,424.46 : 1,006,606.91 = 407,134.49 : x
  2. Step 2: Convert to fraction form
    729,424.46/1,006,606.91 = 407,134.49/x
  3. Step 3: Cross multiply
    729,424.46x = 1,006,606.91 × 407,134.49
  4. Step 4: Simplify right side
    729,424.46x = 409,824,386,918.13
  5. Step 5: Solve for x
    x = 409,824,386,918.13/729,424.46
  6. Step 6: Final answer
    x = 561,846.23

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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.