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Finding the Fourth Proportional to 382,860.74, 528,206.10 and 382,270.25

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Solution

The fourth proportional to 382,860.74, 528,206.10 and 382,270.25 is: 527,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,860.74 : 528,206.10 = 382,270.25 : x
  2. Step 2: Convert to fraction form
    382,860.74/528,206.10 = 382,270.25/x
  3. Step 3: Cross multiply
    382,860.74x = 528,206.10 × 382,270.25
  4. Step 4: Simplify right side
    382,860.74x = 201,917,477,898.53
  5. Step 5: Solve for x
    x = 201,917,477,898.53/382,860.74
  6. Step 6: Final answer
    x = 527,391.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.