Home / 698,463.05-964,142.31-408,168.87

Finding the Fourth Proportional to 698,463.05, 964,142.31 and 408,168.87

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Solution

The fourth proportional to 698,463.05, 964,142.31 and 408,168.87 is: 563,426.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,463.05 : 964,142.31 = 408,168.87 : x
  2. Step 2: Convert to fraction form
    698,463.05/964,142.31 = 408,168.87/x
  3. Step 3: Cross multiply
    698,463.05x = 964,142.31 × 408,168.87
  4. Step 4: Simplify right side
    698,463.05x = 393,532,877,191.89
  5. Step 5: Solve for x
    x = 393,532,877,191.89/698,463.05
  6. Step 6: Final answer
    x = 563,426.91

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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.