Home / 769,328.31-1,061,617.44-425,160.12

Finding the Fourth Proportional to 769,328.31, 1,061,617.44 and 425,160.12

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Solution

The fourth proportional to 769,328.31, 1,061,617.44 and 425,160.12 is: 586,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,328.31 : 1,061,617.44 = 425,160.12 : x
  2. Step 2: Convert to fraction form
    769,328.31/1,061,617.44 = 425,160.12/x
  3. Step 3: Cross multiply
    769,328.31x = 1,061,617.44 × 425,160.12
  4. Step 4: Simplify right side
    769,328.31x = 451,357,398,184.49
  5. Step 5: Solve for x
    x = 451,357,398,184.49/769,328.31
  6. Step 6: Final answer
    x = 586,690.22

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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.