Home / 1,424,429.28-1,965,821.58-812,595.51

Finding the Fourth Proportional to 1,424,429.28, 1,965,821.58 and 812,595.51

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Solution

The fourth proportional to 1,424,429.28, 1,965,821.58 and 812,595.51 is: 1,121,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,429.28 : 1,965,821.58 = 812,595.51 : x
  2. Step 2: Convert to fraction form
    1,424,429.28/1,965,821.58 = 812,595.51/x
  3. Step 3: Cross multiply
    1,424,429.28x = 1,965,821.58 × 812,595.51
  4. Step 4: Simplify right side
    1,424,429.28x = 1,597,417,789,369.11
  5. Step 5: Solve for x
    x = 1,597,417,789,369.11/1,424,429.28
  6. Step 6: Final answer
    x = 1,121,444.08

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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.