Home / 698,829.28-964,317.63-408,508.81

Finding the Fourth Proportional to 698,829.28, 964,317.63 and 408,508.81

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Solution

The fourth proportional to 698,829.28, 964,317.63 and 408,508.81 is: 563,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,829.28 : 964,317.63 = 408,508.81 : x
  2. Step 2: Convert to fraction form
    698,829.28/964,317.63 = 408,508.81/x
  3. Step 3: Cross multiply
    698,829.28x = 964,317.63 × 408,508.81
  4. Step 4: Simplify right side
    698,829.28x = 393,932,247,493.32
  5. Step 5: Solve for x
    x = 393,932,247,493.32/698,829.28
  6. Step 6: Final answer
    x = 563,703.12

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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.