Home / 769,438.14-1,061,879.60-425,266.72

Finding the Fourth Proportional to 769,438.14, 1,061,879.60 and 425,266.72

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Solution

The fourth proportional to 769,438.14, 1,061,879.60 and 425,266.72 is: 586,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,438.14 : 1,061,879.60 = 425,266.72 : x
  2. Step 2: Convert to fraction form
    769,438.14/1,061,879.60 = 425,266.72/x
  3. Step 3: Cross multiply
    769,438.14x = 1,061,879.60 × 425,266.72
  4. Step 4: Simplify right side
    769,438.14x = 451,582,054,526.91
  5. Step 5: Solve for x
    x = 451,582,054,526.91/769,438.14
  6. Step 6: Final answer
    x = 586,898.45

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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.