Home / 945,671.40-1,419,428.70-472,890.60

Finding the Fourth Proportional to 945,671.40, 1,419,428.70 and 472,890.60

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Solution

The fourth proportional to 945,671.40, 1,419,428.70 and 472,890.60 is: 709,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,671.40 : 1,419,428.70 = 472,890.60 : x
  2. Step 2: Convert to fraction form
    945,671.40/1,419,428.70 = 472,890.60/x
  3. Step 3: Cross multiply
    945,671.40x = 1,419,428.70 × 472,890.60
  4. Step 4: Simplify right side
    945,671.40x = 671,234,489,600.22
  5. Step 5: Solve for x
    x = 671,234,489,600.22/945,671.40
  6. Step 6: Final answer
    x = 709,796.75

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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.