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Finding the Fourth Proportional to 3,118,413, 4,677,619.68 and 754,509

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Solution

The fourth proportional to 3,118,413, 4,677,619.68 and 754,509 is: 1,131,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,413 : 4,677,619.68 = 754,509 : x
  2. Step 2: Convert to fraction form
    3,118,413/4,677,619.68 = 754,509/x
  3. Step 3: Cross multiply
    3,118,413x = 4,677,619.68 × 754,509
  4. Step 4: Simplify right side
    3,118,413x = 3,529,306,147,137.12
  5. Step 5: Solve for x
    x = 3,529,306,147,137.12/3,118,413
  6. Step 6: Final answer
    x = 1,131,763.54

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1.5x scale

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.