Home / 729,663.63-1,006,869.54-407,314.41

Finding the Fourth Proportional to 729,663.63, 1,006,869.54 and 407,314.41

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Solution

The fourth proportional to 729,663.63, 1,006,869.54 and 407,314.41 is: 562,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,663.63 : 1,006,869.54 = 407,314.41 : x
  2. Step 2: Convert to fraction form
    729,663.63/1,006,869.54 = 407,314.41/x
  3. Step 3: Cross multiply
    729,663.63x = 1,006,869.54 × 407,314.41
  4. Step 4: Simplify right side
    729,663.63x = 410,112,466,579.44
  5. Step 5: Solve for x
    x = 410,112,466,579.44/729,663.63
  6. Step 6: Final answer
    x = 562,056.89

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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.