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Finding the Fourth Proportional to 555,514.96, 766,657.76 and 313,841.84

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Solution

The fourth proportional to 555,514.96, 766,657.76 and 313,841.84 is: 433,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,514.96 : 766,657.76 = 313,841.84 : x
  2. Step 2: Convert to fraction form
    555,514.96/766,657.76 = 313,841.84/x
  3. Step 3: Cross multiply
    555,514.96x = 766,657.76 × 313,841.84
  4. Step 4: Simplify right side
    555,514.96x = 240,609,282,048.68
  5. Step 5: Solve for x
    x = 240,609,282,048.68/555,514.96
  6. Step 6: Final answer
    x = 433,128.36

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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.