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Finding the Fourth Proportional to 675,483.89, 932,015.12 and 403,498.54

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Solution

The fourth proportional to 675,483.89, 932,015.12 and 403,498.54 is: 556,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,483.89 : 932,015.12 = 403,498.54 : x
  2. Step 2: Convert to fraction form
    675,483.89/932,015.12 = 403,498.54/x
  3. Step 3: Cross multiply
    675,483.89x = 932,015.12 × 403,498.54
  4. Step 4: Simplify right side
    675,483.89x = 376,066,735,830.39
  5. Step 5: Solve for x
    x = 376,066,735,830.39/675,483.89
  6. Step 6: Final answer
    x = 556,736.80

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Double scale
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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.