Home / 899,996.58-1,242,307.80-518,175.54

Finding the Fourth Proportional to 899,996.58, 1,242,307.80 and 518,175.54

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Solution

The fourth proportional to 899,996.58, 1,242,307.80 and 518,175.54 is: 715,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,996.58 : 1,242,307.80 = 518,175.54 : x
  2. Step 2: Convert to fraction form
    899,996.58/1,242,307.80 = 518,175.54/x
  3. Step 3: Cross multiply
    899,996.58x = 1,242,307.80 × 518,175.54
  4. Step 4: Simplify right side
    899,996.58x = 643,733,515,111.21
  5. Step 5: Solve for x
    x = 643,733,515,111.21/899,996.58
  6. Step 6: Final answer
    x = 715,262.18

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Half scale
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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.