Home / 1,282,421.82-1,769,662.40-709,462.00

Finding the Fourth Proportional to 1,282,421.82, 1,769,662.40 and 709,462.00

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Solution

The fourth proportional to 1,282,421.82, 1,769,662.40 and 709,462.00 is: 979,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,421.82 : 1,769,662.40 = 709,462.00 : x
  2. Step 2: Convert to fraction form
    1,282,421.82/1,769,662.40 = 709,462.00/x
  3. Step 3: Cross multiply
    1,282,421.82x = 1,769,662.40 × 709,462.00
  4. Step 4: Simplify right side
    1,282,421.82x = 1,255,508,218,329.94
  5. Step 5: Solve for x
    x = 1,255,508,218,329.94/1,282,421.82
  6. Step 6: Final answer
    x = 979,013.45

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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.