Home / 628,929.20-943,393.80-418,977.20

Finding the Fourth Proportional to 628,929.20, 943,393.80 and 418,977.20

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Solution

The fourth proportional to 628,929.20, 943,393.80 and 418,977.20 is: 628,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,929.20 : 943,393.80 = 418,977.20 : x
  2. Step 2: Convert to fraction form
    628,929.20/943,393.80 = 418,977.20/x
  3. Step 3: Cross multiply
    628,929.20x = 943,393.80 × 418,977.20
  4. Step 4: Simplify right side
    628,929.20x = 395,260,492,821.36
  5. Step 5: Solve for x
    x = 395,260,492,821.36/628,929.20
  6. Step 6: Final answer
    x = 628,465.80

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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.