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Finding the Fourth Proportional to 698,493.04, 963,752.22 and 407,939.82

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Solution

The fourth proportional to 698,493.04, 963,752.22 and 407,939.82 is: 562,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,493.04 : 963,752.22 = 407,939.82 : x
  2. Step 2: Convert to fraction form
    698,493.04/963,752.22 = 407,939.82/x
  3. Step 3: Cross multiply
    698,493.04x = 963,752.22 × 407,939.82
  4. Step 4: Simplify right side
    698,493.04x = 393,152,907,151.40
  5. Step 5: Solve for x
    x = 393,152,907,151.40/698,493.04
  6. Step 6: Final answer
    x = 562,858.73

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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.