Home / 753,290.57-1,039,548.48-409,133.21

Finding the Fourth Proportional to 753,290.57, 1,039,548.48 and 409,133.21

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Solution

The fourth proportional to 753,290.57, 1,039,548.48 and 409,133.21 is: 564,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,290.57 : 1,039,548.48 = 409,133.21 : x
  2. Step 2: Convert to fraction form
    753,290.57/1,039,548.48 = 409,133.21/x
  3. Step 3: Cross multiply
    753,290.57x = 1,039,548.48 × 409,133.21
  4. Step 4: Simplify right side
    753,290.57x = 425,313,806,573.02
  5. Step 5: Solve for x
    x = 425,313,806,573.02/753,290.57
  6. Step 6: Final answer
    x = 564,607.90

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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.