Home / 418,021.48-577,108.83-275,196.70

Finding the Fourth Proportional to 418,021.48, 577,108.83 and 275,196.70

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Solution

The fourth proportional to 418,021.48, 577,108.83 and 275,196.70 is: 379,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,021.48 : 577,108.83 = 275,196.70 : x
  2. Step 2: Convert to fraction form
    418,021.48/577,108.83 = 275,196.70/x
  3. Step 3: Cross multiply
    418,021.48x = 577,108.83 × 275,196.70
  4. Step 4: Simplify right side
    418,021.48x = 158,818,445,556.86
  5. Step 5: Solve for x
    x = 158,818,445,556.86/418,021.48
  6. Step 6: Final answer
    x = 379,928.91

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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.