Home / 1,345,694.40-2,018,930.40-399,087.90

Finding the Fourth Proportional to 1,345,694.40, 2,018,930.40 and 399,087.90

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Solution

The fourth proportional to 1,345,694.40, 2,018,930.40 and 399,087.90 is: 598,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,694.40 : 2,018,930.40 = 399,087.90 : x
  2. Step 2: Convert to fraction form
    1,345,694.40/2,018,930.40 = 399,087.90/x
  3. Step 3: Cross multiply
    1,345,694.40x = 2,018,930.40 × 399,087.90
  4. Step 4: Simplify right side
    1,345,694.40x = 805,730,693,582.16
  5. Step 5: Solve for x
    x = 805,730,693,582.16/1,345,694.40
  6. Step 6: Final answer
    x = 598,747.16

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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.