Home / 1,105,428.72-1,525,561.16-669,884.20

Finding the Fourth Proportional to 1,105,428.72, 1,525,561.16 and 669,884.20

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Solution

The fourth proportional to 1,105,428.72, 1,525,561.16 and 669,884.20 is: 924,482.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,428.72 : 1,525,561.16 = 669,884.20 : x
  2. Step 2: Convert to fraction form
    1,105,428.72/1,525,561.16 = 669,884.20/x
  3. Step 3: Cross multiply
    1,105,428.72x = 1,525,561.16 × 669,884.20
  4. Step 4: Simplify right side
    1,105,428.72x = 1,021,949,317,217.67
  5. Step 5: Solve for x
    x = 1,021,949,317,217.67/1,105,428.72
  6. Step 6: Final answer
    x = 924,482.33

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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.