Home / 389,412.20-584,075.10-108,957.80

Finding the Fourth Proportional to 389,412.20, 584,075.10 and 108,957.80

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Solution

The fourth proportional to 389,412.20, 584,075.10 and 108,957.80 is: 163,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,412.20 : 584,075.10 = 108,957.80 : x
  2. Step 2: Convert to fraction form
    389,412.20/584,075.10 = 108,957.80/x
  3. Step 3: Cross multiply
    389,412.20x = 584,075.10 × 108,957.80
  4. Step 4: Simplify right side
    389,412.20x = 63,639,537,930.78
  5. Step 5: Solve for x
    x = 63,639,537,930.78/389,412.20
  6. Step 6: Final answer
    x = 163,424.61

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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.