Home / 887,381.75-1,330,539.85-407,007.81

Finding the Fourth Proportional to 887,381.75, 1,330,539.85 and 407,007.81

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Solution

The fourth proportional to 887,381.75, 1,330,539.85 and 407,007.81 is: 610,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,381.75 : 1,330,539.85 = 407,007.81 : x
  2. Step 2: Convert to fraction form
    887,381.75/1,330,539.85 = 407,007.81/x
  3. Step 3: Cross multiply
    887,381.75x = 1,330,539.85 × 407,007.81
  4. Step 4: Simplify right side
    887,381.75x = 541,540,108,431.19
  5. Step 5: Solve for x
    x = 541,540,108,431.19/887,381.75
  6. Step 6: Final answer
    x = 610,267.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.