Home / 769,432.40-1,061,871.69-425,260.92

Finding the Fourth Proportional to 769,432.40, 1,061,871.69 and 425,260.92

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Solution

The fourth proportional to 769,432.40, 1,061,871.69 and 425,260.92 is: 586,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,432.40 : 1,061,871.69 = 425,260.92 : x
  2. Step 2: Convert to fraction form
    769,432.40/1,061,871.69 = 425,260.92/x
  3. Step 3: Cross multiply
    769,432.40x = 1,061,871.69 × 425,260.92
  4. Step 4: Simplify right side
    769,432.40x = 451,572,531,811.36
  5. Step 5: Solve for x
    x = 451,572,531,811.36/769,432.40
  6. Step 6: Final answer
    x = 586,890.46

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Double scale
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Similar ratio
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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.