Home / 753,523.10-1,039,857.75-409,356.30

Finding the Fourth Proportional to 753,523.10, 1,039,857.75 and 409,356.30

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Solution

The fourth proportional to 753,523.10, 1,039,857.75 and 409,356.30 is: 564,909.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,523.10 : 1,039,857.75 = 409,356.30 : x
  2. Step 2: Convert to fraction form
    753,523.10/1,039,857.75 = 409,356.30/x
  3. Step 3: Cross multiply
    753,523.10x = 1,039,857.75 × 409,356.30
  4. Step 4: Simplify right side
    753,523.10x = 425,672,321,066.33
  5. Step 5: Solve for x
    x = 425,672,321,066.33/753,523.10
  6. Step 6: Final answer
    x = 564,909.46

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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.