Home / 1,642,905.65-2,465,240.72-684,023.21

Finding the Fourth Proportional to 1,642,905.65, 2,465,240.72 and 684,023.21

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Solution

The fourth proportional to 1,642,905.65, 2,465,240.72 and 684,023.21 is: 1,026,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,905.65 : 2,465,240.72 = 684,023.21 : x
  2. Step 2: Convert to fraction form
    1,642,905.65/2,465,240.72 = 684,023.21/x
  3. Step 3: Cross multiply
    1,642,905.65x = 2,465,240.72 × 684,023.21
  4. Step 4: Simplify right side
    1,642,905.65x = 1,686,281,867,297.00
  5. Step 5: Solve for x
    x = 1,686,281,867,297.00/1,642,905.65
  6. Step 6: Final answer
    x = 1,026,402.14

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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.