Home / 1,218,168.78-1,827,248.20-307,353.38

Finding the Fourth Proportional to 1,218,168.78, 1,827,248.20 and 307,353.38

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Solution

The fourth proportional to 1,218,168.78, 1,827,248.20 and 307,353.38 is: 461,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,168.78 : 1,827,248.20 = 307,353.38 : x
  2. Step 2: Convert to fraction form
    1,218,168.78/1,827,248.20 = 307,353.38/x
  3. Step 3: Cross multiply
    1,218,168.78x = 1,827,248.20 × 307,353.38
  4. Step 4: Simplify right side
    1,218,168.78x = 561,610,910,368.92
  5. Step 5: Solve for x
    x = 561,610,910,368.92/1,218,168.78
  6. Step 6: Final answer
    x = 461,028.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.