Home / 946,806.40-1,420,216.80-315,719.20

Finding the Fourth Proportional to 946,806.40, 1,420,216.80 and 315,719.20

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Solution

The fourth proportional to 946,806.40, 1,420,216.80 and 315,719.20 is: 473,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,806.40 : 1,420,216.80 = 315,719.20 : x
  2. Step 2: Convert to fraction form
    946,806.40/1,420,216.80 = 315,719.20/x
  3. Step 3: Cross multiply
    946,806.40x = 1,420,216.80 × 315,719.20
  4. Step 4: Simplify right side
    946,806.40x = 448,389,711,922.56
  5. Step 5: Solve for x
    x = 448,389,711,922.56/946,806.40
  6. Step 6: Final answer
    x = 473,581.20

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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.