Home / 721,878.18-1,082,443.50-384,828.30

Finding the Fourth Proportional to 721,878.18, 1,082,443.50 and 384,828.30

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Solution

The fourth proportional to 721,878.18, 1,082,443.50 and 384,828.30 is: 577,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,878.18 : 1,082,443.50 = 384,828.30 : x
  2. Step 2: Convert to fraction form
    721,878.18/1,082,443.50 = 384,828.30/x
  3. Step 3: Cross multiply
    721,878.18x = 1,082,443.50 × 384,828.30
  4. Step 4: Simplify right side
    721,878.18x = 416,554,891,951.05
  5. Step 5: Solve for x
    x = 416,554,891,951.05/721,878.18
  6. Step 6: Final answer
    x = 577,043.20

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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.