Home / 820,396.22-1,132,011.35-457,819.20

Finding the Fourth Proportional to 820,396.22, 1,132,011.35 and 457,819.20

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Solution

The fourth proportional to 820,396.22, 1,132,011.35 and 457,819.20 is: 631,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,396.22 : 1,132,011.35 = 457,819.20 : x
  2. Step 2: Convert to fraction form
    820,396.22/1,132,011.35 = 457,819.20/x
  3. Step 3: Cross multiply
    820,396.22x = 1,132,011.35 × 457,819.20
  4. Step 4: Simplify right side
    820,396.22x = 518,256,528,358.82
  5. Step 5: Solve for x
    x = 518,256,528,358.82/820,396.22
  6. Step 6: Final answer
    x = 631,714.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.