Home / 1,111,437.20-1,533,143.75-669,604.88

Finding the Fourth Proportional to 1,111,437.20, 1,533,143.75 and 669,604.88

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Solution

The fourth proportional to 1,111,437.20, 1,533,143.75 and 669,604.88 is: 923,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,437.20 : 1,533,143.75 = 669,604.88 : x
  2. Step 2: Convert to fraction form
    1,111,437.20/1,533,143.75 = 669,604.88/x
  3. Step 3: Cross multiply
    1,111,437.20x = 1,533,143.75 × 669,604.88
  4. Step 4: Simplify right side
    1,111,437.20x = 1,026,600,525,727.76
  5. Step 5: Solve for x
    x = 1,026,600,525,727.76/1,111,437.20
  6. Step 6: Final answer
    x = 923,669.40

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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.