Home / 547,733.88-755,743.23-318,154.77

Finding the Fourth Proportional to 547,733.88, 755,743.23 and 318,154.77

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Solution

The fourth proportional to 547,733.88, 755,743.23 and 318,154.77 is: 438,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,733.88 : 755,743.23 = 318,154.77 : x
  2. Step 2: Convert to fraction form
    547,733.88/755,743.23 = 318,154.77/x
  3. Step 3: Cross multiply
    547,733.88x = 755,743.23 × 318,154.77
  4. Step 4: Simplify right side
    547,733.88x = 240,443,313,519.71
  5. Step 5: Solve for x
    x = 240,443,313,519.71/547,733.88
  6. Step 6: Final answer
    x = 438,978.35

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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.