Home / 1,402,333.77-2,101,839.87-643,535.65

Finding the Fourth Proportional to 1,402,333.77, 2,101,839.87 and 643,535.65

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Solution

The fourth proportional to 1,402,333.77, 2,101,839.87 and 643,535.65 is: 964,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,333.77 : 2,101,839.87 = 643,535.65 : x
  2. Step 2: Convert to fraction form
    1,402,333.77/2,101,839.87 = 643,535.65/x
  3. Step 3: Cross multiply
    1,402,333.77x = 2,101,839.87 × 643,535.65
  4. Step 4: Simplify right side
    1,402,333.77x = 1,352,608,886,936.37
  5. Step 5: Solve for x
    x = 1,352,608,886,936.37/1,402,333.77
  6. Step 6: Final answer
    x = 964,541.34

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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.