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Finding the Fourth Proportional to 872,847.04, 1,204,510 and 505,339.68

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Solution

The fourth proportional to 872,847.04, 1,204,510 and 505,339.68 is: 697,357.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,847.04 : 1,204,510 = 505,339.68 : x
  2. Step 2: Convert to fraction form
    872,847.04/1,204,510 = 505,339.68/x
  3. Step 3: Cross multiply
    872,847.04x = 1,204,510 × 505,339.68
  4. Step 4: Simplify right side
    872,847.04x = 608,686,697,956.80
  5. Step 5: Solve for x
    x = 608,686,697,956.80/872,847.04
  6. Step 6: Final answer
    x = 697,357.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.