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Finding the Fourth Proportional to 442,807.30, 663,226.80 and 364,075.30

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Solution

The fourth proportional to 442,807.30, 663,226.80 and 364,075.30 is: 545,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,807.30 : 663,226.80 = 364,075.30 : x
  2. Step 2: Convert to fraction form
    442,807.30/663,226.80 = 364,075.30/x
  3. Step 3: Cross multiply
    442,807.30x = 663,226.80 × 364,075.30
  4. Step 4: Simplify right side
    442,807.30x = 241,464,496,178.04
  5. Step 5: Solve for x
    x = 241,464,496,178.04/442,807.30
  6. Step 6: Final answer
    x = 545,303.78

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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.