Home / 756,942.54-1,134,128.51-456,792.40

Finding the Fourth Proportional to 756,942.54, 1,134,128.51 and 456,792.40

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Solution

The fourth proportional to 756,942.54, 1,134,128.51 and 456,792.40 is: 684,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,942.54 : 1,134,128.51 = 456,792.40 : x
  2. Step 2: Convert to fraction form
    756,942.54/1,134,128.51 = 456,792.40/x
  3. Step 3: Cross multiply
    756,942.54x = 1,134,128.51 × 456,792.40
  4. Step 4: Simplify right side
    756,942.54x = 518,061,283,991.32
  5. Step 5: Solve for x
    x = 518,061,283,991.32/756,942.54
  6. Step 6: Final answer
    x = 684,412.96

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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.