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Finding the Fourth Proportional to 489,075.80, 733,613.70 and 347,358.20

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Solution

The fourth proportional to 489,075.80, 733,613.70 and 347,358.20 is: 521,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,075.80 : 733,613.70 = 347,358.20 : x
  2. Step 2: Convert to fraction form
    489,075.80/733,613.70 = 347,358.20/x
  3. Step 3: Cross multiply
    489,075.80x = 733,613.70 × 347,358.20
  4. Step 4: Simplify right side
    489,075.80x = 254,826,734,327.34
  5. Step 5: Solve for x
    x = 254,826,734,327.34/489,075.80
  6. Step 6: Final answer
    x = 521,037.30

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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.