Home / 555,784.48-766,983.09-301,135.67

Finding the Fourth Proportional to 555,784.48, 766,983.09 and 301,135.67

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Solution

The fourth proportional to 555,784.48, 766,983.09 and 301,135.67 is: 415,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,784.48 : 766,983.09 = 301,135.67 : x
  2. Step 2: Convert to fraction form
    555,784.48/766,983.09 = 301,135.67/x
  3. Step 3: Cross multiply
    555,784.48x = 766,983.09 × 301,135.67
  4. Step 4: Simplify right side
    555,784.48x = 230,965,966,685.82
  5. Step 5: Solve for x
    x = 230,965,966,685.82/555,784.48
  6. Step 6: Final answer
    x = 415,567.50

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Double scale
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Similar ratio
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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.