Home / 748,934.90-1,123,291.62-275,509.55

Finding the Fourth Proportional to 748,934.90, 1,123,291.62 and 275,509.55

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Solution

The fourth proportional to 748,934.90, 1,123,291.62 and 275,509.55 is: 413,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,934.90 : 1,123,291.62 = 275,509.55 : x
  2. Step 2: Convert to fraction form
    748,934.90/1,123,291.62 = 275,509.55/x
  3. Step 3: Cross multiply
    748,934.90x = 1,123,291.62 × 275,509.55
  4. Step 4: Simplify right side
    748,934.90x = 309,477,561,750.97
  5. Step 5: Solve for x
    x = 309,477,561,750.97/748,934.90
  6. Step 6: Final answer
    x = 413,223.58

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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.