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Finding the Fourth Proportional to 546,378.40, 819,130.20 and 230,575.60

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Solution

The fourth proportional to 546,378.40, 819,130.20 and 230,575.60 is: 345,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,378.40 : 819,130.20 = 230,575.60 : x
  2. Step 2: Convert to fraction form
    546,378.40/819,130.20 = 230,575.60/x
  3. Step 3: Cross multiply
    546,378.40x = 819,130.20 × 230,575.60
  4. Step 4: Simplify right side
    546,378.40x = 188,871,437,343.12
  5. Step 5: Solve for x
    x = 188,871,437,343.12/546,378.40
  6. Step 6: Final answer
    x = 345,678.81

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Similar ratio
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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.