Home / 729,491.85-1,006,912.58-423,705.74

Finding the Fourth Proportional to 729,491.85, 1,006,912.58 and 423,705.74

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Solution

The fourth proportional to 729,491.85, 1,006,912.58 and 423,705.74 is: 584,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,491.85 : 1,006,912.58 = 423,705.74 : x
  2. Step 2: Convert to fraction form
    729,491.85/1,006,912.58 = 423,705.74/x
  3. Step 3: Cross multiply
    729,491.85x = 1,006,912.58 × 423,705.74
  4. Step 4: Simplify right side
    729,491.85x = 426,634,632,671.12
  5. Step 5: Solve for x
    x = 426,634,632,671.12/729,491.85
  6. Step 6: Final answer
    x = 584,838.11

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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.