Home / 847,409.70-1,271,114.10-216,323.28

Finding the Fourth Proportional to 847,409.70, 1,271,114.10 and 216,323.28

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Solution

The fourth proportional to 847,409.70, 1,271,114.10 and 216,323.28 is: 324,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,409.70 : 1,271,114.10 = 216,323.28 : x
  2. Step 2: Convert to fraction form
    847,409.70/1,271,114.10 = 216,323.28/x
  3. Step 3: Cross multiply
    847,409.70x = 1,271,114.10 × 216,323.28
  4. Step 4: Simplify right side
    847,409.70x = 274,971,571,366.25
  5. Step 5: Solve for x
    x = 274,971,571,366.25/847,409.70
  6. Step 6: Final answer
    x = 324,484.81

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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.