Home / 692,827.40-1,039,241.10-425,721.80

Finding the Fourth Proportional to 692,827.40, 1,039,241.10 and 425,721.80

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Solution

The fourth proportional to 692,827.40, 1,039,241.10 and 425,721.80 is: 638,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,827.40 : 1,039,241.10 = 425,721.80 : x
  2. Step 2: Convert to fraction form
    692,827.40/1,039,241.10 = 425,721.80/x
  3. Step 3: Cross multiply
    692,827.40x = 1,039,241.10 × 425,721.80
  4. Step 4: Simplify right side
    692,827.40x = 442,427,591,725.98
  5. Step 5: Solve for x
    x = 442,427,591,725.98/692,827.40
  6. Step 6: Final answer
    x = 638,582.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.