Home / 945,597.49-1,304,898.78-515,877.55

Finding the Fourth Proportional to 945,597.49, 1,304,898.78 and 515,877.55

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Solution

The fourth proportional to 945,597.49, 1,304,898.78 and 515,877.55 is: 711,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,597.49 : 1,304,898.78 = 515,877.55 : x
  2. Step 2: Convert to fraction form
    945,597.49/1,304,898.78 = 515,877.55/x
  3. Step 3: Cross multiply
    945,597.49x = 1,304,898.78 × 515,877.55
  4. Step 4: Simplify right side
    945,597.49x = 673,167,985,624.39
  5. Step 5: Solve for x
    x = 673,167,985,624.39/945,597.49
  6. Step 6: Final answer
    x = 711,896.97

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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.