Home / 1,105,426.72-1,525,558.40-669,882.20

Finding the Fourth Proportional to 1,105,426.72, 1,525,558.40 and 669,882.20

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Solution

The fourth proportional to 1,105,426.72, 1,525,558.40 and 669,882.20 is: 924,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,426.72 : 1,525,558.40 = 669,882.20 : x
  2. Step 2: Convert to fraction form
    1,105,426.72/1,525,558.40 = 669,882.20/x
  3. Step 3: Cross multiply
    1,105,426.72x = 1,525,558.40 × 669,882.20
  4. Step 4: Simplify right side
    1,105,426.72x = 1,021,944,421,104.69
  5. Step 5: Solve for x
    x = 1,021,944,421,104.69/1,105,426.72
  6. Step 6: Final answer
    x = 924,479.57

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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.