Home / 1,154,638.91-1,593,374.14-645,388.67

Finding the Fourth Proportional to 1,154,638.91, 1,593,374.14 and 645,388.67

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Solution

The fourth proportional to 1,154,638.91, 1,593,374.14 and 645,388.67 is: 890,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,638.91 : 1,593,374.14 = 645,388.67 : x
  2. Step 2: Convert to fraction form
    1,154,638.91/1,593,374.14 = 645,388.67/x
  3. Step 3: Cross multiply
    1,154,638.91x = 1,593,374.14 × 645,388.67
  4. Step 4: Simplify right side
    1,154,638.91x = 1,028,345,617,026.99
  5. Step 5: Solve for x
    x = 1,028,345,617,026.99/1,154,638.91
  6. Step 6: Final answer
    x = 890,620.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.