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Finding the Fourth Proportional to 548,987.66, 757,602.83 and 307,270.25

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Solution

The fourth proportional to 548,987.66, 757,602.83 and 307,270.25 is: 424,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,987.66 : 757,602.83 = 307,270.25 : x
  2. Step 2: Convert to fraction form
    548,987.66/757,602.83 = 307,270.25/x
  3. Step 3: Cross multiply
    548,987.66x = 757,602.83 × 307,270.25
  4. Step 4: Simplify right side
    548,987.66x = 232,788,810,974.81
  5. Step 5: Solve for x
    x = 232,788,810,974.81/548,987.66
  6. Step 6: Final answer
    x = 424,032.87

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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.