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Finding the Fourth Proportional to 555,500.91, 766,638.45 and 313,827.84

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Solution

The fourth proportional to 555,500.91, 766,638.45 and 313,827.84 is: 433,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,500.91 : 766,638.45 = 313,827.84 : x
  2. Step 2: Convert to fraction form
    555,500.91/766,638.45 = 313,827.84/x
  3. Step 3: Cross multiply
    555,500.91x = 766,638.45 × 313,827.84
  4. Step 4: Simplify right side
    555,500.91x = 240,592,488,824.45
  5. Step 5: Solve for x
    x = 240,592,488,824.45/555,500.91
  6. Step 6: Final answer
    x = 433,109.08

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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.