Home / 904,665.09-1,248,459.51-491,219.29

Finding the Fourth Proportional to 904,665.09, 1,248,459.51 and 491,219.29

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Solution

The fourth proportional to 904,665.09, 1,248,459.51 and 491,219.29 is: 677,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,665.09 : 1,248,459.51 = 491,219.29 : x
  2. Step 2: Convert to fraction form
    904,665.09/1,248,459.51 = 491,219.29/x
  3. Step 3: Cross multiply
    904,665.09x = 1,248,459.51 × 491,219.29
  4. Step 4: Simplify right side
    904,665.09x = 613,267,394,095.95
  5. Step 5: Solve for x
    x = 613,267,394,095.95/904,665.09
  6. Step 6: Final answer
    x = 677,894.40

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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.