Home / 1,087,880.79-1,631,819.40-289,162.34

Finding the Fourth Proportional to 1,087,880.79, 1,631,819.40 and 289,162.34

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Solution

The fourth proportional to 1,087,880.79, 1,631,819.40 and 289,162.34 is: 433,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,880.79 : 1,631,819.40 = 289,162.34 : x
  2. Step 2: Convert to fraction form
    1,087,880.79/1,631,819.40 = 289,162.34/x
  3. Step 3: Cross multiply
    1,087,880.79x = 1,631,819.40 × 289,162.34
  4. Step 4: Simplify right side
    1,087,880.79x = 471,860,716,161.40
  5. Step 5: Solve for x
    x = 471,860,716,161.40/1,087,880.79
  6. Step 6: Final answer
    x = 433,743.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.