Home / 697,957.73-1,047,457.68-518,457.65

Finding the Fourth Proportional to 697,957.73, 1,047,457.68 and 518,457.65

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Solution

The fourth proportional to 697,957.73, 1,047,457.68 and 518,457.65 is: 778,073.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,957.73 : 1,047,457.68 = 518,457.65 : x
  2. Step 2: Convert to fraction form
    697,957.73/1,047,457.68 = 518,457.65/x
  3. Step 3: Cross multiply
    697,957.73x = 1,047,457.68 × 518,457.65
  4. Step 4: Simplify right side
    697,957.73x = 543,062,440,065.75
  5. Step 5: Solve for x
    x = 543,062,440,065.75/697,957.73
  6. Step 6: Final answer
    x = 778,073.54

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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.