Home / 863,666.40-1,191,474.18-500,880

Finding the Fourth Proportional to 863,666.40, 1,191,474.18 and 500,880

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Solution

The fourth proportional to 863,666.40, 1,191,474.18 and 500,880 is: 690,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,666.40 : 1,191,474.18 = 500,880 : x
  2. Step 2: Convert to fraction form
    863,666.40/1,191,474.18 = 500,880/x
  3. Step 3: Cross multiply
    863,666.40x = 1,191,474.18 × 500,880
  4. Step 4: Simplify right side
    863,666.40x = 596,785,587,278.40
  5. Step 5: Solve for x
    x = 596,785,587,278.40/863,666.40
  6. Step 6: Final answer
    x = 690,990.86

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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.