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Finding the Fourth Proportional to 437,574.70, 656,362.05 and 408,050.20

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Solution

The fourth proportional to 437,574.70, 656,362.05 and 408,050.20 is: 612,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,574.70 : 656,362.05 = 408,050.20 : x
  2. Step 2: Convert to fraction form
    437,574.70/656,362.05 = 408,050.20/x
  3. Step 3: Cross multiply
    437,574.70x = 656,362.05 × 408,050.20
  4. Step 4: Simplify right side
    437,574.70x = 267,828,665,774.91
  5. Step 5: Solve for x
    x = 267,828,665,774.91/437,574.70
  6. Step 6: Final answer
    x = 612,075.30

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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.