Home / 769,431.65-1,061,870.63-425,260.19

Finding the Fourth Proportional to 769,431.65, 1,061,870.63 and 425,260.19

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Solution

The fourth proportional to 769,431.65, 1,061,870.63 and 425,260.19 is: 586,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,431.65 : 1,061,870.63 = 425,260.19 : x
  2. Step 2: Convert to fraction form
    769,431.65/1,061,870.63 = 425,260.19/x
  3. Step 3: Cross multiply
    769,431.65x = 1,061,870.63 × 425,260.19
  4. Step 4: Simplify right side
    769,431.65x = 451,571,306,397.60
  5. Step 5: Solve for x
    x = 451,571,306,397.60/769,431.65
  6. Step 6: Final answer
    x = 586,889.44

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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.