Home / 769,431.13-1,061,869.93-425,259.65

Finding the Fourth Proportional to 769,431.13, 1,061,869.93 and 425,259.65

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Solution

The fourth proportional to 769,431.13, 1,061,869.93 and 425,259.65 is: 586,888.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,431.13 : 1,061,869.93 = 425,259.65 : x
  2. Step 2: Convert to fraction form
    769,431.13/1,061,869.93 = 425,259.65/x
  3. Step 3: Cross multiply
    769,431.13x = 1,061,869.93 × 425,259.65
  4. Step 4: Simplify right side
    769,431.13x = 451,570,436,368.85
  5. Step 5: Solve for x
    x = 451,570,436,368.85/769,431.13
  6. Step 6: Final answer
    x = 586,888.70

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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.