Home / 697,957.36-1,047,457.07-518,457.21

Finding the Fourth Proportional to 697,957.36, 1,047,457.07 and 518,457.21

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Solution

The fourth proportional to 697,957.36, 1,047,457.07 and 518,457.21 is: 778,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,957.36 : 1,047,457.07 = 518,457.21 : x
  2. Step 2: Convert to fraction form
    697,957.36/1,047,457.07 = 518,457.21/x
  3. Step 3: Cross multiply
    697,957.36x = 1,047,457.07 × 518,457.21
  4. Step 4: Simplify right side
    697,957.36x = 543,061,665,530.94
  5. Step 5: Solve for x
    x = 543,061,665,530.94/697,957.36
  6. Step 6: Final answer
    x = 778,072.84

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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.