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Finding the Fourth Proportional to 540,035.20, 808,303.20 and 382,571.20

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Solution

The fourth proportional to 540,035.20, 808,303.20 and 382,571.20 is: 572,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,035.20 : 808,303.20 = 382,571.20 : x
  2. Step 2: Convert to fraction form
    540,035.20/808,303.20 = 382,571.20/x
  3. Step 3: Cross multiply
    540,035.20x = 808,303.20 × 382,571.20
  4. Step 4: Simplify right side
    540,035.20x = 309,233,525,187.84
  5. Step 5: Solve for x
    x = 309,233,525,187.84/540,035.20
  6. Step 6: Final answer
    x = 572,617.35

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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.