Home / 1,326,400.20-1,989,746.10-485,134.20

Finding the Fourth Proportional to 1,326,400.20, 1,989,746.10 and 485,134.20

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Solution

The fourth proportional to 1,326,400.20, 1,989,746.10 and 485,134.20 is: 727,754.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,400.20 : 1,989,746.10 = 485,134.20 : x
  2. Step 2: Convert to fraction form
    1,326,400.20/1,989,746.10 = 485,134.20/x
  3. Step 3: Cross multiply
    1,326,400.20x = 1,989,746.10 × 485,134.20
  4. Step 4: Simplify right side
    1,326,400.20x = 965,293,882,426.62
  5. Step 5: Solve for x
    x = 965,293,882,426.62/1,326,400.20
  6. Step 6: Final answer
    x = 727,754.63

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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.