Home / 946,757.43-1,420,148.70-315,671.45

Finding the Fourth Proportional to 946,757.43, 1,420,148.70 and 315,671.45

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Solution

The fourth proportional to 946,757.43, 1,420,148.70 and 315,671.45 is: 473,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,757.43 : 1,420,148.70 = 315,671.45 : x
  2. Step 2: Convert to fraction form
    946,757.43/1,420,148.70 = 315,671.45/x
  3. Step 3: Cross multiply
    946,757.43x = 1,420,148.70 × 315,671.45
  4. Step 4: Simplify right side
    946,757.43x = 448,300,392,243.87
  5. Step 5: Solve for x
    x = 448,300,392,243.87/946,757.43
  6. Step 6: Final answer
    x = 473,511.35

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.