Home / 540,022.40-808,867.20-290,412.80

Finding the Fourth Proportional to 540,022.40, 808,867.20 and 290,412.80

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Solution

The fourth proportional to 540,022.40, 808,867.20 and 290,412.80 is: 434,991.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,022.40 : 808,867.20 = 290,412.80 : x
  2. Step 2: Convert to fraction form
    540,022.40/808,867.20 = 290,412.80/x
  3. Step 3: Cross multiply
    540,022.40x = 808,867.20 × 290,412.80
  4. Step 4: Simplify right side
    540,022.40x = 234,905,388,380.16
  5. Step 5: Solve for x
    x = 234,905,388,380.16/540,022.40
  6. Step 6: Final answer
    x = 434,991.93

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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.