Home / 1,172,355.52-1,618,154.72-663,353.16

Finding the Fourth Proportional to 1,172,355.52, 1,618,154.72 and 663,353.16

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Solution

The fourth proportional to 1,172,355.52, 1,618,154.72 and 663,353.16 is: 915,599.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,355.52 : 1,618,154.72 = 663,353.16 : x
  2. Step 2: Convert to fraction form
    1,172,355.52/1,618,154.72 = 663,353.16/x
  3. Step 3: Cross multiply
    1,172,355.52x = 1,618,154.72 × 663,353.16
  4. Step 4: Simplify right side
    1,172,355.52x = 1,073,408,046,880.92
  5. Step 5: Solve for x
    x = 1,073,408,046,880.92/1,172,355.52
  6. Step 6: Final answer
    x = 915,599.43

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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.