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Finding the Fourth Proportional to 439,072.80, 657,625.05 and 360,340.80

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Solution

The fourth proportional to 439,072.80, 657,625.05 and 360,340.80 is: 539,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,072.80 : 657,625.05 = 360,340.80 : x
  2. Step 2: Convert to fraction form
    439,072.80/657,625.05 = 360,340.80/x
  3. Step 3: Cross multiply
    439,072.80x = 657,625.05 × 360,340.80
  4. Step 4: Simplify right side
    439,072.80x = 236,969,136,617.04
  5. Step 5: Solve for x
    x = 236,969,136,617.04/439,072.80
  6. Step 6: Final answer
    x = 539,703.52

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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.