Home / 724,181.88-999,417.78-401,892.60

Finding the Fourth Proportional to 724,181.88, 999,417.78 and 401,892.60

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Solution

The fourth proportional to 724,181.88, 999,417.78 and 401,892.60 is: 554,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,181.88 : 999,417.78 = 401,892.60 : x
  2. Step 2: Convert to fraction form
    724,181.88/999,417.78 = 401,892.60/x
  3. Step 3: Cross multiply
    724,181.88x = 999,417.78 × 401,892.60
  4. Step 4: Simplify right side
    724,181.88x = 401,658,610,090.43
  5. Step 5: Solve for x
    x = 401,658,610,090.43/724,181.88
  6. Step 6: Final answer
    x = 554,637.75

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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.