Home / 698,472.33-964,155.14-408,178.15

Finding the Fourth Proportional to 698,472.33, 964,155.14 and 408,178.15

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Solution

The fourth proportional to 698,472.33, 964,155.14 and 408,178.15 is: 563,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,472.33 : 964,155.14 = 408,178.15 : x
  2. Step 2: Convert to fraction form
    698,472.33/964,155.14 = 408,178.15/x
  3. Step 3: Cross multiply
    698,472.33x = 964,155.14 × 408,178.15
  4. Step 4: Simplify right side
    698,472.33x = 393,547,059,968.25
  5. Step 5: Solve for x
    x = 393,547,059,968.25/698,472.33
  6. Step 6: Final answer
    x = 563,439.73

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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.