Home / 1,319,299.56-1,820,636.90-715,687.56

Finding the Fourth Proportional to 1,319,299.56, 1,820,636.90 and 715,687.56

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Solution

The fourth proportional to 1,319,299.56, 1,820,636.90 and 715,687.56 is: 987,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,299.56 : 1,820,636.90 = 715,687.56 : x
  2. Step 2: Convert to fraction form
    1,319,299.56/1,820,636.90 = 715,687.56/x
  3. Step 3: Cross multiply
    1,319,299.56x = 1,820,636.90 × 715,687.56
  4. Step 4: Simplify right side
    1,319,299.56x = 1,303,007,180,606.96
  5. Step 5: Solve for x
    x = 1,303,007,180,606.96/1,319,299.56
  6. Step 6: Final answer
    x = 987,650.74

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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.