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Finding the Fourth Proportional to 540,016.20, 808,274.70 and 477,030.60

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Solution

The fourth proportional to 540,016.20, 808,274.70 and 477,030.60 is: 714,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,016.20 : 808,274.70 = 477,030.60 : x
  2. Step 2: Convert to fraction form
    540,016.20/808,274.70 = 477,030.60/x
  3. Step 3: Cross multiply
    540,016.20x = 808,274.70 × 477,030.60
  4. Step 4: Simplify right side
    540,016.20x = 385,571,765,105.82
  5. Step 5: Solve for x
    x = 385,571,765,105.82/540,016.20
  6. Step 6: Final answer
    x = 714,000.37

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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.