Home / 759,353.12-1,047,929.12-419,843.20

Finding the Fourth Proportional to 759,353.12, 1,047,929.12 and 419,843.20

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Solution

The fourth proportional to 759,353.12, 1,047,929.12 and 419,843.20 is: 579,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,353.12 : 1,047,929.12 = 419,843.20 : x
  2. Step 2: Convert to fraction form
    759,353.12/1,047,929.12 = 419,843.20/x
  3. Step 3: Cross multiply
    759,353.12x = 1,047,929.12 × 419,843.20
  4. Step 4: Simplify right side
    759,353.12x = 439,965,915,113.98
  5. Step 5: Solve for x
    x = 439,965,915,113.98/759,353.12
  6. Step 6: Final answer
    x = 579,395.68

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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.