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Finding the Fourth Proportional to 555,658.06, 766,807.43 and 301,010.30

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Solution

The fourth proportional to 555,658.06, 766,807.43 and 301,010.30 is: 415,393.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,658.06 : 766,807.43 = 301,010.30 : x
  2. Step 2: Convert to fraction form
    555,658.06/766,807.43 = 301,010.30/x
  3. Step 3: Cross multiply
    555,658.06x = 766,807.43 × 301,010.30
  4. Step 4: Simplify right side
    555,658.06x = 230,816,934,546.53
  5. Step 5: Solve for x
    x = 230,816,934,546.53/555,658.06
  6. Step 6: Final answer
    x = 415,393.84

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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.