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Finding the Fourth Proportional to 540,011.80, 808,851.30 and 446,699.80

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Solution

The fourth proportional to 540,011.80, 808,851.30 and 446,699.80 is: 669,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,011.80 : 808,851.30 = 446,699.80 : x
  2. Step 2: Convert to fraction form
    540,011.80/808,851.30 = 446,699.80/x
  3. Step 3: Cross multiply
    540,011.80x = 808,851.30 × 446,699.80
  4. Step 4: Simplify right side
    540,011.80x = 361,313,713,939.74
  5. Step 5: Solve for x
    x = 361,313,713,939.74/540,011.80
  6. Step 6: Final answer
    x = 669,084.85

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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.