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Finding the Fourth Proportional to 540,022.80, 808,065.90 and 492,783.60

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Solution

The fourth proportional to 540,022.80, 808,065.90 and 492,783.60 is: 737,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,022.80 : 808,065.90 = 492,783.60 : x
  2. Step 2: Convert to fraction form
    540,022.80/808,065.90 = 492,783.60/x
  3. Step 3: Cross multiply
    540,022.80x = 808,065.90 × 492,783.60
  4. Step 4: Simplify right side
    540,022.80x = 398,201,623,239.24
  5. Step 5: Solve for x
    x = 398,201,623,239.24/540,022.80
  6. Step 6: Final answer
    x = 737,379.28

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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.