Home / 1,319,299.19-1,820,636.39-715,687.19

Finding the Fourth Proportional to 1,319,299.19, 1,820,636.39 and 715,687.19

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Solution

The fourth proportional to 1,319,299.19, 1,820,636.39 and 715,687.19 is: 987,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,299.19 : 1,820,636.39 = 715,687.19 : x
  2. Step 2: Convert to fraction form
    1,319,299.19/1,820,636.39 = 715,687.19/x
  3. Step 3: Cross multiply
    1,319,299.19x = 1,820,636.39 × 715,687.19
  4. Step 4: Simplify right side
    1,319,299.19x = 1,303,006,141,970.84
  5. Step 5: Solve for x
    x = 1,303,006,141,970.84/1,319,299.19
  6. Step 6: Final answer
    x = 987,650.23

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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.