Home / 747,627.84-1,121,436-186,658.56

Finding the Fourth Proportional to 747,627.84, 1,121,436 and 186,658.56

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Solution

The fourth proportional to 747,627.84, 1,121,436 and 186,658.56 is: 279,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,627.84 : 1,121,436 = 186,658.56 : x
  2. Step 2: Convert to fraction form
    747,627.84/1,121,436 = 186,658.56/x
  3. Step 3: Cross multiply
    747,627.84x = 1,121,436 × 186,658.56
  4. Step 4: Simplify right side
    747,627.84x = 209,325,628,892.16
  5. Step 5: Solve for x
    x = 209,325,628,892.16/747,627.84
  6. Step 6: Final answer
    x = 279,986.40

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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.