Home / 946,745.40-1,420,125.30-315,658.20

Finding the Fourth Proportional to 946,745.40, 1,420,125.30 and 315,658.20

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Solution

The fourth proportional to 946,745.40, 1,420,125.30 and 315,658.20 is: 473,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,745.40 : 1,420,125.30 = 315,658.20 : x
  2. Step 2: Convert to fraction form
    946,745.40/1,420,125.30 = 315,658.20/x
  3. Step 3: Cross multiply
    946,745.40x = 1,420,125.30 × 315,658.20
  4. Step 4: Simplify right side
    946,745.40x = 448,274,195,972.46
  5. Step 5: Solve for x
    x = 448,274,195,972.46/946,745.40
  6. Step 6: Final answer
    x = 473,489.70

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Double scale
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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.