Home / 818,668.14-1,228,133.46-345,423.24

Finding the Fourth Proportional to 818,668.14, 1,228,133.46 and 345,423.24

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Solution

The fourth proportional to 818,668.14, 1,228,133.46 and 345,423.24 is: 518,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,668.14 : 1,228,133.46 = 345,423.24 : x
  2. Step 2: Convert to fraction form
    818,668.14/1,228,133.46 = 345,423.24/x
  3. Step 3: Cross multiply
    818,668.14x = 1,228,133.46 × 345,423.24
  4. Step 4: Simplify right side
    818,668.14x = 424,225,838,905.61
  5. Step 5: Solve for x
    x = 424,225,838,905.61/818,668.14
  6. Step 6: Final answer
    x = 518,190.24

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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.