Home / 1,087,545-1,631,664.20-456,289.32

Finding the Fourth Proportional to 1,087,545, 1,631,664.20 and 456,289.32

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Solution

The fourth proportional to 1,087,545, 1,631,664.20 and 456,289.32 is: 684,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,545 : 1,631,664.20 = 456,289.32 : x
  2. Step 2: Convert to fraction form
    1,087,545/1,631,664.20 = 456,289.32/x
  3. Step 3: Cross multiply
    1,087,545x = 1,631,664.20 × 456,289.32
  4. Step 4: Simplify right side
    1,087,545x = 744,510,948,286.34
  5. Step 5: Solve for x
    x = 744,510,948,286.34/1,087,545
  6. Step 6: Final answer
    x = 684,579.44

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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.