Home / 1,375,510.20-2,063,265.30-428,873.40

Finding the Fourth Proportional to 1,375,510.20, 2,063,265.30 and 428,873.40

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Solution

The fourth proportional to 1,375,510.20, 2,063,265.30 and 428,873.40 is: 643,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,510.20 : 2,063,265.30 = 428,873.40 : x
  2. Step 2: Convert to fraction form
    1,375,510.20/2,063,265.30 = 428,873.40/x
  3. Step 3: Cross multiply
    1,375,510.20x = 2,063,265.30 × 428,873.40
  4. Step 4: Simplify right side
    1,375,510.20x = 884,879,604,313.02
  5. Step 5: Solve for x
    x = 884,879,604,313.02/1,375,510.20
  6. Step 6: Final answer
    x = 643,310.10

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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.