Home / 736,385.80-1,103,801.10-420,161.80

Finding the Fourth Proportional to 736,385.80, 1,103,801.10 and 420,161.80

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Solution

The fourth proportional to 736,385.80, 1,103,801.10 and 420,161.80 is: 629,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,385.80 : 1,103,801.10 = 420,161.80 : x
  2. Step 2: Convert to fraction form
    736,385.80/1,103,801.10 = 420,161.80/x
  3. Step 3: Cross multiply
    736,385.80x = 1,103,801.10 × 420,161.80
  4. Step 4: Simplify right side
    736,385.80x = 463,775,057,017.98
  5. Step 5: Solve for x
    x = 463,775,057,017.98/736,385.80
  6. Step 6: Final answer
    x = 629,799.02

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Double scale
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1.5x scale

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.