Home / 553,670.20-829,986.90-433,660.60

Finding the Fourth Proportional to 553,670.20, 829,986.90 and 433,660.60

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Solution

The fourth proportional to 553,670.20, 829,986.90 and 433,660.60 is: 650,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.20 : 829,986.90 = 433,660.60 : x
  2. Step 2: Convert to fraction form
    553,670.20/829,986.90 = 433,660.60/x
  3. Step 3: Cross multiply
    553,670.20x = 829,986.90 × 433,660.60
  4. Step 4: Simplify right side
    553,670.20x = 359,932,617,046.14
  5. Step 5: Solve for x
    x = 359,932,617,046.14/553,670.20
  6. Step 6: Final answer
    x = 650,084.86

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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.