Home / 847,808.40-1,271,707.56-216,721.20

Finding the Fourth Proportional to 847,808.40, 1,271,707.56 and 216,721.20

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Solution

The fourth proportional to 847,808.40, 1,271,707.56 and 216,721.20 is: 325,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,808.40 : 1,271,707.56 = 216,721.20 : x
  2. Step 2: Convert to fraction form
    847,808.40/1,271,707.56 = 216,721.20/x
  3. Step 3: Cross multiply
    847,808.40x = 1,271,707.56 × 216,721.20
  4. Step 4: Simplify right side
    847,808.40x = 275,605,988,452.27
  5. Step 5: Solve for x
    x = 275,605,988,452.27/847,808.40
  6. Step 6: Final answer
    x = 325,080.51

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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.