Home / 1,455,212.80-2,182,819.20-457,940.80

Finding the Fourth Proportional to 1,455,212.80, 2,182,819.20 and 457,940.80

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Solution

The fourth proportional to 1,455,212.80, 2,182,819.20 and 457,940.80 is: 686,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,212.80 : 2,182,819.20 = 457,940.80 : x
  2. Step 2: Convert to fraction form
    1,455,212.80/2,182,819.20 = 457,940.80/x
  3. Step 3: Cross multiply
    1,455,212.80x = 2,182,819.20 × 457,940.80
  4. Step 4: Simplify right side
    1,455,212.80x = 999,601,970,703.36
  5. Step 5: Solve for x
    x = 999,601,970,703.36/1,455,212.80
  6. Step 6: Final answer
    x = 686,911.20

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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.