Home / 1,724,165.87-2,379,348.47-999,434.16

Finding the Fourth Proportional to 1,724,165.87, 2,379,348.47 and 999,434.16

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Solution

The fourth proportional to 1,724,165.87, 2,379,348.47 and 999,434.16 is: 1,379,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724,165.87 : 2,379,348.47 = 999,434.16 : x
  2. Step 2: Convert to fraction form
    1,724,165.87/2,379,348.47 = 999,434.16/x
  3. Step 3: Cross multiply
    1,724,165.87x = 2,379,348.47 × 999,434.16
  4. Step 4: Simplify right side
    1,724,165.87x = 2,378,002,141,960.32
  5. Step 5: Solve for x
    x = 2,378,002,141,960.32/1,724,165.87
  6. Step 6: Final answer
    x = 1,379,218.90

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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.