Home / 1,395,990.20-2,093,985.30-917,693.30

Finding the Fourth Proportional to 1,395,990.20, 2,093,985.30 and 917,693.30

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Solution

The fourth proportional to 1,395,990.20, 2,093,985.30 and 917,693.30 is: 1,376,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,990.20 : 2,093,985.30 = 917,693.30 : x
  2. Step 2: Convert to fraction form
    1,395,990.20/2,093,985.30 = 917,693.30/x
  3. Step 3: Cross multiply
    1,395,990.20x = 2,093,985.30 × 917,693.30
  4. Step 4: Simplify right side
    1,395,990.20x = 1,921,636,280,108.49
  5. Step 5: Solve for x
    x = 1,921,636,280,108.49/1,395,990.20
  6. Step 6: Final answer
    x = 1,376,539.95

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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.