Home / 1,105,763.82-1,525,368.81-761,001.21

Finding the Fourth Proportional to 1,105,763.82, 1,525,368.81 and 761,001.21

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Solution

The fourth proportional to 1,105,763.82, 1,525,368.81 and 761,001.21 is: 1,049,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,763.82 : 1,525,368.81 = 761,001.21 : x
  2. Step 2: Convert to fraction form
    1,105,763.82/1,525,368.81 = 761,001.21/x
  3. Step 3: Cross multiply
    1,105,763.82x = 1,525,368.81 × 761,001.21
  4. Step 4: Simplify right side
    1,105,763.82x = 1,160,807,510,106.26
  5. Step 5: Solve for x
    x = 1,160,807,510,106.26/1,105,763.82
  6. Step 6: Final answer
    x = 1,049,778.89

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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.