Home / 1,091,311.20-1,636,966.80-613,014.30

Finding the Fourth Proportional to 1,091,311.20, 1,636,966.80 and 613,014.30

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Solution

The fourth proportional to 1,091,311.20, 1,636,966.80 and 613,014.30 is: 919,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,311.20 : 1,636,966.80 = 613,014.30 : x
  2. Step 2: Convert to fraction form
    1,091,311.20/1,636,966.80 = 613,014.30/x
  3. Step 3: Cross multiply
    1,091,311.20x = 1,636,966.80 × 613,014.30
  4. Step 4: Simplify right side
    1,091,311.20x = 1,003,484,057,025.24
  5. Step 5: Solve for x
    x = 1,003,484,057,025.24/1,091,311.20
  6. Step 6: Final answer
    x = 919,521.45

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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.