Home / 945,674.80-1,418,512.20-472,433.20

Finding the Fourth Proportional to 945,674.80, 1,418,512.20 and 472,433.20

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Solution

The fourth proportional to 945,674.80, 1,418,512.20 and 472,433.20 is: 708,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,674.80 : 1,418,512.20 = 472,433.20 : x
  2. Step 2: Convert to fraction form
    945,674.80/1,418,512.20 = 472,433.20/x
  3. Step 3: Cross multiply
    945,674.80x = 1,418,512.20 × 472,433.20
  4. Step 4: Simplify right side
    945,674.80x = 670,152,257,885.04
  5. Step 5: Solve for x
    x = 670,152,257,885.04/945,674.80
  6. Step 6: Final answer
    x = 708,649.80

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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.